[#11, #12, #13, #14, #27] Initial amnestic storage/secure procurement infrastructure and climate‑secure storage [#11]; small medical/forensic/autopsy suite buildout for pathology and specimen storage [#12]; research equipment for extradimensional/time‑behavior testing (sensor benches, remote logging) [#13]; specialized sensors and instrumentation for pocket‑dimension study (wearables, probes) [#14]; conservative one-time allowance for long‑term scientific scale‑up if SCP-3964 requires multi‑year expanded research (seed buildout) [#27].

[#1, #2, #10, #16] Includes excavation and conversion of the small space to Site-██-B (civil excavation, reinforced concrete, HVAC, decon/evidence lockers, modest bedrooms/offices) [#1]; structural sealing/walling of the stairwell and library renovations to conceal work and support cover story (permits/soft procurements) [#2]; psych-ward observation beds / secure observation setup (2–4 beds) [#10]; installation/initial hookup of backup generator and UPS infrastructure as part of physical works [#16].

[#3, #4, #5, #15] Secure access hardware (mantrap, ballistic/tamper‑resistant doors, badge/biometric readers, alarms) initial purchase/installation [#3]; CCTV camera hardware and installation for stairwells [#4]; centralized monitoring station hardware/servers/displays initial purchase [#5]; secure communications/encryption hardware initial deployment [#15].

[#18] One-time fleet purchase (1–3 secure transport vans, upfitting for secure detainee transport and specimen movement).

[#20] Initial digital forensics / record-purging campaign and one-time cover operations to remove stairwell records and seed cover story.

[#21] Initial intensive staff training and background-check startup costs (suicide‑prevention, restraint, amnestic administration, vetting).

[#5, #6, #7, #8, #13, #20, #21] Annual salaried payroll for site staff: monitoring operators and central monitoring staff [#5]; security staffing (6–10 guards, supervisors, response team) [#6]; medical staff (nurses/EMT, on-call physician) [#7]; rotating therapists/psychiatrists (24/7 coverage) [#8]; research team salaries for continued study and testing [#13]; includes on‑site administrative staff and personnel who support redaction/cover ops and ongoing vetting [#20,#21].

[#4, #5, #9, #12, #13, #14, #24] Recurring costs for research programs and monitoring: D‑class upkeep and recurrent testing costs [#13]; specialized sensor replacements and analysis [#14]; forensic consumables and pathology reagents [#12]; psychiatric screening consumables and related non‑wage testing costs (biweekly re‑screening infrastructure costs) [#9]; ongoing high‑resolution telemetry/video retention operations and analysis not counted in security systems maintenance [#24]; note: operator wages are in staff_wages above [#5].

[#19, #20, #26] Recurring legal/PR/liaison expenditures: payments/NDAs/PR to college, retainers for legal counsel, ongoing redaction/team monitoring contracts and covert public‑safety liaison payments to local services as needed.

[#11] Recurring procurement/production/replacement of Class‑A through D amnestics, secure inventory turnover and distribution costs (excludes medical admin wages, which are in staff_wages).

[#10] Recurring operation of secure short‑term evaluation beds: staffing, sedation meds, observation supplies and security during evaluations.

[#27] Ongoing costs attributable to maintaining and scaling long‑term scientific programs if SCP-3964 requires extended decades‑scale study (admin, oversight, expanded sample analysis).

[#22] Annual reserved budget for unexpected containment escalations, surge hires, ad hoc procurement and small emergency funds.

[#25] Long‑term therapy, disability care and medical followup for affected staff and survivors returned from SCP-3964-1.

[#1, #2, #16] Annual maintenance for Site-██-B structural elements, HVAC/moisture mitigation, stairwell seals, and periodic generator/UPS inspections beyond fuel testing (structural upkeep and building O&M).

[#3, #4, #5, #15, #16] Recurring maintenance and service contracts for access control, CCTV hardware upkeep, alarm/tamper systems, central monitoring servers (ops contracts) and communications system operations.

[#18] Vehicle operation costs: fuel, insurance, drivers, routine vehicle maintenance and occasional secure transport requirements.

[#21] Ongoing vetting, background checks, refresher training, and recurrent psychological risk management beyond the biweekly screenings.

[#23] PPE, medical disposables, syringes, sedatives, cleaning supplies, batteries, office consumables, vending restocking exposure policy supplies.

[#17] Biohazard cleanup, evidence handling, vandalism repair (including occasional replacement/repair of items damaged by SCP-3964-2 instances).

[#16] Fuel, periodic load testing, and minor repairs for backup generators and UPS systems.