[#5, #6, #12, #15] Containment cell physical upgrades/anti-tamper entry ($75,000 mid-range); perimeter fencing & gate ($35,000); quarantine aviary buildout ($15,000); onsite vault/safe room build ($125,000).

[#3, #4, #7, #8, #11, #14, #18, #22, #23, #24] Secure lockers/screening station ($20,000); metal detectors + hand wands + handheld XRF (~$20,500); initial close-up cameras installed (~6 units @ ~$21,000); small NAS/RAID backup for CCTV ($10,000); initial avian full exam ($1,500); initial hazard characterization lab tests ($6,000); initial legal/cover setup retainer included below as separate (#18 also appears in legal retainer); forensic hardware/software initial ($10,000); UPS/replacement reserve hardware ($3,000); initial data-security server/firewall hardware ($20,000).

[#2] Initial weapons/containment training for 18 guards (~$1,000/guard = $18k ONE-TIME).

[#26] One-time contingency for initial crisis PR/materials or ad-hoc incident suppression setup (lower-end retainer/event fund).

[#1] 18 guards × $45,000 base ≈ $810,000 + ~25% benefits ≈ $1,010,000/yr (salaries, payroll taxes, benefits, uniforms, on-site meals).

[#19] Fractional FTE/site admin, records officer time allocated to SCP-2389 (~$50–100k/yr).

[#13] Annual outsourced assays, ICP-MS/isotope services and exploratory studies budget (~$25–150k/yr; assumes moderate program ~$50k/yr).

[#20] Annual reserve for theft attempts, emergency investigations, overtime and legal response (~$25–150k/yr).

[#16] Armored courier/transfers for produced gold or high-value samples; assumed monthly/quarterly transfers; mid-range ~$48k/yr (range $24–72k/yr).

[#7] Camera capital for new-nest provisioning (assumes ~12 new nests/yr × ~$3,500 avg installed camera = ~$42k/yr).

[#3] Maintenance, clerical staffing for locker/inventory receipts and CCTV monitoring of screening room (~$30–50k/yr).

[#18] Ongoing legal counsel, cover operations, permits and interaction with authorities (~$20–100k/yr; mid-range $40k/yr).

[#25] Long-term replacement capital reserve (5–10% of capital assets per year; mid-range reserve ~$30k/yr).

[#26] Ongoing retainer for crisis PR/covert retrieval support (~$10–50k/yr; mid-range $30k/yr).

[#21] Background reinvestigations, investigations, replacement hiring (~$10–40k/yr).

[#24] Annual maintenance/monitoring for encrypted CCTV/research servers, firewall, monitoring (~$10–40k/yr).

[#2] Annual recertification, ongoing training, background rechecks component (~$10–25k/yr).

[#8] Continuous video storage expansion/maintenance/power (~$3–10k/yr scaled up; assume $20k/yr for current camera load).

[#9] Spare parts and technical labor for camera/housing maintenance (~$5–15k/yr).

[#14] Annual hazardous disposal and contingency for liquefied impurities (~$5–15k/yr) and per-batch disposal costs as needed.

[#10] Routine path clearing, pest control, drainage (~$5–10k/yr).

[#11] Food/supplies (~$300–1,000/yr) plus routine and emergency vet visits and contingency (~$2–8k/yr); combined mid-range estimate.

[#17] Insurance premiums dependent on insured value; mid-range/low-production scenario (~$5k/yr).

[#23] Power for cameras, alarms, network equipment and backups (~$2–8k/yr).

[#4] Calibration/support for XRF and detectors (~$2–5k/yr).

[#5] Intrusion sensors & maintenance (~$2–6k/yr).

[#6] Monitored alarm service for perimeter/gate (~$1–5k/yr).

[#12] Ongoing care costs if quarantine/breeding approved (~$1–5k/yr).

[#15] Secure inventory system upkeep and custody log maintenance (~small recurring costs).

[#22] Ongoing per-case handling, software maintenance and training (~$ per-case variable; baseline maintenance ~$2–15k initially; here $2k/yr recurring).