[#1, #2, #3, #9, #10, #13, #18, #22] One-time costs for vault outfitting, sealed test room construction, refractory lining/sacrificial floor, heavy-duty containment cell, foundation reinforcement, power distribution infrastructure upgrade, access-control hardware, and small storage cabinets/cataloguing. Estimates summed from line-item ranges (vault $30k; sealed room $275k; refractory lining $600k; containment cell $8,000k; foundation $1,100k; power infra $425k; access-control $60k; storage cabinets $15k).

[#26] Dedicated long-term reserve / stewardship fund to cover indefinite future capital projects, containment escalation or decommissioning (chosen midpoint within $5M–$50M range).

[#4, #5, #6, #7, #8, #11, #12, #16, #19, #25] One-time purchase/installation of non-water closed-loop cooling ($900k), high-temperature remote manipulators/robotics ($875k), thermal/geophysical monitoring suite ($125k), initial specialized PPE sets ($250k), non-water fire suppression systems ($300k), heavy-crane purchase ($625k), specialized transport containment cradle ($275k), laboratory consumable setup included here where instrument-specific (minor instruments excluded - see initial_research_and_lab_setup), MTF/mobile response equipment ($650k), and advanced wound-care stock ($20k).

[#20] Immediate contingency fund for on-site damage remediation, temporary housing and initial repairs per major incident (lower-midpoint of $500k–$5M).

[#15, #16] One-time research lab fit-out and primary analytical instruments (lab fit-out $300k; mass spec/SEM/XRD/high-temp furnaces and essential instruments $600k) required to analyze outputs and conduct the scientific program.

[#24] One-time SOP development and initial comprehensive training program creation ($20k–$150k range; chosen midpoint $85k).

[#14, #15, #18] Recurring fully-loaded wages for 24/7 monitoring/operators, research staff, security guards and on-site oversight: monitoring ops (4 FTE), research scientists (6 FTE), security (8 FTE), engineers/maintenance (3 FTE), site director (1), admin (1), medical/burn specialist (1), readiness liaisons (2). Salaries aggregated from per-role estimates consistent with analyst ranges.

[#1, #2, #3, #4, #5, #6, #8, #12, #13, #28] Annual maintenance, HVAC filters and testing, scheduled refractory repair/replacement (annualized), cooling system maintenance, manipulator spare parts, sensor calibration/data storage upkeep, suppression system inspection/refills, cradle spares, power fuel/electricity/maintenance, and miscellaneous site overhead/utilities.

[#19] Annual training, exercises, MTF readiness, heat-resistant vehicle upkeep and rapid-cordon equipment (recurring component of MTF readiness).

[#7, #16, #23, #25] Consumables and replacements including PPE maintenance/replacements, laboratory consumables and service contracts, testing consumables (spare refractory bricks, seals, gas cylinders), and medical/burn-care consumables.

[#11, #12, #22, #27] Ongoing transport-related costs: averaged rental/operation for occasional heavy-lift moves, maintenance/annual spares for transport cradle, storage/curation for small output sculptures, and insurance/liability for sample transport and contractor work.

[#21] Annual legal, PR, cover-story maintenance, liaison and FOIA-management budgeting (mid-range of $50k–$500k). Per-incident legal/PR response costs are modeled in scenarios.

[#20] Ongoing modeling, contingency planning and evacuation/exposure planning costs (annualized planning expenses).

[#17] Continuous scientific monitoring, high-resolution logging and secure data storage/archiving costs (baseline archival and processing).

[#24] Annual refresher training/SOP updates and simulated trials (chosen midpoint $10k–$50k).