[#2, #3, #4, #5, #6, #7, #16, #21] Includes fixed reality-anchor installation and integration ([#2] ~$9,500,000), pedestal and inert mounting hardware ([#3] $50,000), primary sensor-suite hardware ([#4] $300,000), remote handling robotics and spares ([#5] $500,000), replacement/upgraded portable SRAs ([#6] $8,000,000), hardened portable containment lockers ([#7] $800,000), redundant data-storage hardware ([#16] $200,000), and specialized transport fleet/tools ([#21] $300,000).

[#1, #15, #26, #27] Includes construction and structural reinforcement of a Keter-class chamber ([#1] ~$8,000,000), optional/mitigation containment capacity planning ([#15] alternative build currently not chosen; one-time mitigation budget set to $0 here), one-time build cost for physical-redundancy infrastructure components ([#26] ~$750,000), and decommissioning/long-term lifecycle set-aside ([#27] ~$3,000,000).

[#14, #22] Initial R&D program (theoretical/experimental, prototypes, outsourced grants) and lab buildout ([#14] ~$6,000,000) plus upgraded remote imaging & measurement R&D initial hardware/software ([#22] ~$400,000).

[#19] One-time reserve option for rapid replacement of major equipment or emergency procurement ([#19] recommended one-time reserve cited at ~$5,000,000).

[#25] One-time contractor/insurance/overhead add-on for contracted build/integration work ([#25] estimated 15–40% of contracted spend; placeholder estimate applied).

[#23] Initial cover-up budget / legal/PR one-time costs ([#23] initial cover-up budget estimated $100k–300k).

[#8, #9, #10, #11] Dedicated security staff (~12 guards + 2 supervisors) and overtime ([#8] ~$1.05M), scientific R&D/containment team ([#9] ~$950k), technical staff and maintenance crew ([#10] ~$500k), and permanent monitoring/control room operations ([#11] ~$300k) — combined salaries and benefits.

[#14, #22] Ongoing R&D follow-up and monitoring ([#14] ongoing ~$1M–2M/yr; selected midpoint), plus continued imaging/sensor development follow-up ([#22] ~$100k–200k/yr).

[#15] Recurring cost representing lost containment capacity / diminished efficiency if chambers above/below remain unoccupied ([#15] estimated ~$1–3M/yr if mitigated by recurring inefficiency rather than one-time construction).

[#19] Recurring contingency/reserve fund to replace lost/damaged equipment quickly ([#19] recommended 20% of program budget; annual reserve selected in middle of recommended range).

[#25] Recurring contractor markups, liability insurance, and overhead on outsourced work ([#25] estimated 15–40% of contracted spend; recurring placeholder).

[#13, #17] Testing budget and expendables ([#13] ~$100k–300k) plus amnestic supplies and memetic countermeasures ([#17] ~$25k–100k).

[#12] Ongoing energy and HVAC costs for chamber and reality-anchor power draw, plus some generator fuel/maintenance ([#12] electrical + backup fuel estimated ~$110k–250k; point estimate applied).

[#23] Ongoing legal/cover-story/PR costs to maintain secrecy and manage incidents ([#23] recurring ~$50k–500k/yr; midpoint chosen).

[#20] Annual specialized disposal and teardown costs for items altered by SCP-7749 ([#20] annual contingency estimate $50k–200k).

[#21] Transport & logistics operations for off-site tests/movements and fleet ops ([#21] recurring ops ~$50k–150k/yr).

[#5] Maintenance, spares, and servicing for remote manipulators and robotic systems ([#5] maintenance estimated $50k–150k/yr).

[#24] Recurring training, drills, and certification for remote operations, SRA deployment, and emergency response ([#24] estimated $50k–150k/yr).

[#26] Annual maintenance for redundant power, anchor control, and communications systems ([#26] maintenance estimated $50k–200k/yr).

[#16] Maintenance and operations for redundant, air-gapped storage and compute cluster ([#16] estimated $30k–60k/yr).

[#4] Annual maintenance, calibration and replacement parts for the high-grade multi-modal sensor suite ([#4] maintenance estimated $20k–50k/yr).