[#28] Contingency reserve for major future containment upgrades or facilities buildouts if SCP behavior/requirements change.

[#16] Initial liability/insurance/contingency reserve for litigation, settlements or large-scale containment upgrades (organization-selected cushion).

[#20, #21, #23] Initial research/mapping pilot equipment, testing safety rig & harness systems, and purchase of remote sensing/geospatial data for pilot studies.

[#1, #2, #3] Reinforced concrete wall, steel blast door installation, structural engineering/design/permitting and any alternate-egress construction (mid-range selection of estimates combined).

[#4, #5, #7, #9, #11, #14, #19, #26] High-security locks & access-control hardware, CCTV/sensors, UPS/tie-in, security response equipment, initial spare-parts stock, initial cover-story signage/props, secure server setup, and contractor mobilization premium (aggregated mid-range estimates).

[#30] Budget for future safe deconstruction/removal of concrete wall and blast door and site restoration if containment is later altered.

[#18] Per-incident remediation reserve (set aside for accidental access remediation; mid-range of per-incident estimate).

[#22] Initial background/psychological vetting for access personnel (assumes vetting for on-site security + minimal admin allocation).

[#8, #12] Security staffing (minimal rotating model of ~3 guards) plus allocated administrative overhead (0.25–0.5 FTE) for access approvals/logging; mid-range wage assumptions.

[#6, #19, #20, #23, #24] Central monitoring service (CCTV/alarm monitoring), secure hosting/IT maintenance, modest ongoing research data fees (licenses/software), geospatial data access and records retention costs aggregated as an operational monitoring/research budget (baseline monitoring only; large-scale research would add staff costs under scenarios).

[#14, #15, #27, #29] Ongoing cover-story materials/replacements, legal counsel/ethics/regulatory management, PR/HR interventions and nominal recurring insurance-related admin (legal & communications focus).

[#17] Ongoing budget for medical/psychological support, counseling and emergency medical standby resources.

[#7, #10] Ongoing maintenance of door/lock hardware, masonry inspections/repairs and minor generator/UPS servicing (recurring portion; generator fuel split to separate line).

[#13] Annual staff briefings, evacuation drill updates, and broad site training on sealed stairwell procedures.

[#18] Annual contingency planning and tabletop exercises for accidental access and remediation workflows.

[#25] Estimated ongoing opportunity cost from blocked circulation space and potential relocation impacts.

[#29] Annual insurance premiums for equipment and specialized containment components.

[#9] Annual training and drills specific to security response equipment and procedures.

[#7] Annual fuel and maintenance for generator support to ensure locks/cameras remain functional during extended outages.

[#11] Annual replenishment of spare parts and consumables (lock actuators, camera modules, repair materials).

[#4] Recurring licensing/maintenance fees for access-control/biometric systems.

[#22] Annual recheck costs for cleared personnel (background/psych review renewals).