[#22] Contingent capital reserve in case SCP behavior changes and containment scale-up is required (bigger chamber, higher staffing, stricter protocols).

[#2, #6, #7, #8, #11, #12] Climate-controlled enclosure and archival hardware (#2); remote robotic manipulator/opening rig (#6); high-fidelity audiovisual & environmental instrumentation (#7); data capture/scanners/secure servers (#8); initial stock of amnestics/sedatives/pharmaceuticals (#11 initial stock); initial PPE kit (#12 initial kit).

[#1, #4, #5] Secure storage/locker upgrade, testing chamber structural upgrades and hardened door, and installation of chamber environmental controls/ventilation (tamper-proof locks, reinforced doors, ventilation/HEPA installation).

[#16] Destructive-testing contingency fund for authorization, specialized procedures and forensic analysis if decided to physically alter/destroy SCP-4890.

[#15] Initial experimental research & analysis budget for baseline set of tests (page-count tests, material analysis, specialized lab work).

[#13] One-time legal/cover-up and acquisition documentation costs for fabricated acquisition records, compensations and counsel.

[#14] Secure transport, intake processing, chain-of-custody, initial forensic imaging and containment transfer (one-time as acquired).

[#3] One-time access control & personnel vetting (background checks, clearance processing, initial authorized-staff training for ~3 personnel).

[#9] Designated personnel salaries: 1Level-3 researcher, 2 technicians, 2 armed guards plus ~25% benefits/overhead (total estimated ~$400k–$450k/yr; midpoint used).

[#17] MTF/rapid-response readiness posture, training rotations and readiness overhead (range $50k–$200k/yr; midpoint used).

[#7, #8, #15, #19] Recurring data storage/backup and instrumentation data costs (#7, #8); ongoing experimental research budget (~$30,000/yr) (#15); periodic archival imaging campaigns budgeted across years (#19).

[#10] On-call medical/psychological support, debriefing services and post-test screening (shared staffing or contracted services).

[#18] Monitoring publications, personnel output and external channels; countermeasures to limit memetic/information leakage.

[#11] Annual replenishment for amnestics, sedatives and emergency pharmaceuticals and consumables (recurring replenishment range $5k–$20k/yr).

[#21] Reserve for incident cleanup, remediation, contractor cleanup, repairs and replacement equipment per incident (budgeted at $10,000/yr as operational reserve).

[#20] Administrative time, ethics committee reviews, audits and approvals (Level 3 approvals and senior staff time).

[#19] Budgeted recurring cost for repeated high-resolution imaging campaigns and associated processing/storage averaged annually.

[#5, #6] Ongoing maintenance for chamber environmental controls/ventilation filters and rated components (#5 maintenance/filters) and annual maintenance/servicing for robotic manipulator (#6 maintenance).

[#2, #12] Electricity/consumables for the climate-controlled enclosure (#2 recurring $200–$600/yr) and PPE consumable replenishment (#12 $1,000–$3,000/yr).