[#20] Liability / catastrophic contingency reserve for potential containment failure, emergency response, legal settlements or large-scale remediation.

[#7, #14] High-speed/high-sensitivity diagnostics and lab instruments for safe study and residue analysis (#7); initial experimental research program startup costs, postdoc/PI time and test campaign setup (#14 initial program).

[#27] Planning reserve for scaling/adding an additional unit (single additional-unit build similar to items #1–#9).

[#22] Contingency for safe decommissioning or replacement of SCP-5742, including dismantling, transport and research to neutralize secondary effects.

[#2, #3, #4, #5, #6] High-security electromechanical locks and access controls (#2), CCTV/hardware purchase & install (#3 hardware portion), remote handling manipulators and control station (#4), initial specialized insertion tooling/fixtures (#5 initial hardware portion), environmental monitoring suite hardware and integration (#6 hardware portion).

[#1] Reinforced containment room structural retrofit, blast-rated door, vibration isolation slab and site integration inside Site-109 Waste Disposal Center.

[#8] Independent fail-safes and emergency containment systems: secondary sealed chamber, rapid-deploy barriers, inert gas flooding and automatic isolation valves; emergency power cutoff hardware.

[#9] Inert-gas fire suppression installation, dedicated HVAC modifications with HEPA/chemical scrubbers and overpressure/negative-pressure capability.

[#16] Secure temporary storage vaults: chemical containment cabinets, radiological lockers and environmental controls for staging items awaiting destruction.

[#19] Hardened classified record-keeping hardware and secure offline archival setup for authorization forms, audit logs, video and research data (initial setup).

[#10] On-site generator and UPS to maintain monitoring, access controls, cameras and remote manipulators during outages (purchase/installation).

[#12] Initial training, certifications, SOP development and clearance processing for authorized personnel (one-time setup and course development).

[#6, #14, #23] Calibration and consumables for environmental monitoring (#6 recurring), ongoing experimental research program operating budget (#14 recurring), and external waste-stream auditing/environmental sampling (#23).

[#11] Dedicated operations team salaries: 1authorized operator, 1 backup operator, 2 security guards, 0.25 FTE safety inspector; higher clearances and hazard pay.

[#25] Specialized insurance premiums or captive insurance funding for anomalous operations and liability transfer instruments.

[#18, #24] Legal, regulatory, environmental reporting and cover-story public operations (fake contracts, shell company, plausible receipts/documentation) to manage external oversight and plausible deniability.

[#21] On-call hazardous response team readiness, drills, PPE replenishment and rapid-deployment gear availability.

[#15] Secure transport and armored shipments for hazardous/anomalous materials to Site-109, including escorts, transfer cassettes and contamination control.

[#3, #9, #10, #13, #16] Annual maintenance and operation: secure storage/backup maintenance (#3), HVAC/fire suppression operation & maintenance (#9), backup power fuel/testing (#10), inspection and preventative maintenance protocols (#13), on-site storage environmental maintenance (#16).

[#5, #17] Replacement of specialized insertion tooling and sacrificial liners (#5 recurring replacement) and consumables/PPE (hazmat suits, respirators, filters, small spare parts) (#17).

[#19] Ongoing maintenance of hardened classified record-keeping systems, secure backups and periodic audits.

[#26] Miscellaneous administrative overhead: authorization workflows, Director sign-off administrative time, record audits and incidental expenditures.

[#12] Recurring training, certifications refresher courses, simulated drills and periodic psychological/background re-screening for authorized personnel.