[#1, #2, #3, #4, #18] Land acquisition or equivalent control of a 400 m exclusion radius, site remediation/clearing of glass/electronics, perimeter fencing/access construction, dedicated containment building with non-silicon construction premium, and premium for silicon-free plumbing/build materials.

[#5, #6, #7, #8, #9, #10, #21, #22] Acrylic containment enclosure, redundant pressure-control hardware and external pumps/plumbing, mechanical/pneumatic linkages, emergency depressurization hardware, remote monitoring hardware sited outside the exclusion zone, initial PPE stock, external generators, and initial spare parts inventory.

[#26] Reserve for future decommissioning / long-term disposal planning and execution when closure occurs.

[#25] Initial public-relations / cover-up budget and contingency reserve for displacement compensation or immediate contingencies.

[#20] One-time costs to negotiate and modify local infrastructure, install reroute/disable mechanisms, and compensate owners as needed for infrastructure changes within/adjacent to the exclusion zone.

[#19] One-time legal/insurance/cover operations setup costs (front company setup, initial legal fees, permits).

[#12] Initial specialist training, drills, and certification setup (initial course development, instructor fees, and certification infrastructure).

[#11] Initial personnel screening for silicon implants / silicone-containing medical devices for an initial roster (~20 people).

[#13, #14] Ongoing salaries: on-site security patrols and supervisor plus on-call rapid-response/MTF allocation (~$500k/yr) and research/technical staff (1 senior researcher + 2 technicians, ~$240k/yr).

[#23] Ongoing R&D program funding to develop safe handling, deactivation, and separation techniques (multi-year program baseline).

[#19, #25] Recurring insurance premiums, legal retainers, regulatory compliance costs, and recurring cover/PR contingency funding.

[#21] Ongoing power/fuel logistics and generator maintenance (contracts for fuel delivery and generator upkeep sited outside the exclusion zone).

[#6] Recurring maintenance, parts replacement, and servicing for redundant pressure-control system, external pumps, compressors, and vacuum-rated piping.

[#3] Annual maintenance for perimeter fencing, gates, access control systems, and related site upkeep.

[#9] Operations, shielding, comms costs, and redundant line fees for telemetry and remote monitoring sited outside the exclusion zone.

[#24] Routine inspection, calibration, and certification of mechanical gauges, vacuum-rated lines, and external engines.

[#12] Annual refresher training, drills, and certification maintenance for personnel operating under low-pressure/nonelectronics constraints.

[#10] Ongoing replacement and inventory refresh for specialized non-silicone PPE and suits.

[#17] Incineration and regulated hazardous disposal for materials contacting resin or contaminated sanitizer and collected debris.

[#22] Restocking of spare acrylic panels, seals, valves, pumps, and specialty non-silicone fittings kept outside exclusion zone.

[#20] Recurring liaison fees and small compensations to local authorities/owners for infrastructure coordination and access control.

[#16] Periodic replacement/maintenance of acrylic resin seals for SCP-3917-2 and consumables for resealing operations.

[#8] Annual testing, certification, and replacement of fail-safe mechanical dumps (burst discs, spring-actuated valves) and associated certification.

[#11] Recurring screening budget for new hires and periodic rechecks to ensure no silicon implants/medical devices.

[#15] Consumables including hand-sanitizer mixture replenishment, mixing and small lab supplies (sanitizer cost is minimal).