[#2, #3, #4, #5, #6, #8, #14, #15, #24, #25, #26] Blast/impact door, hardened AV hardware, HVAC installation, fire suppression hardware, small incinerator/muffle furnace, initial PPE kits, inventory lockers, sensors, initial secure archive hardware, reinforced transport crate, remote handling/robotics.

[#1] Structural construction of the 3m×3m fire‑resistant reinforced containment chamber, excavation/patching, finishes and tie‑ins.

[#20] Initial contingency / emergency repair reserve or clandestine equivalent (one‑time allocation).

[#11, #13] Digitization and initial library curation, scheduling/tracking & compliance software development / logging systems (one‑time development and buildout).

[#9, #10, #12] Salaries and benefits for 1 lead researcher, 2 full‑time research techs, 1 AV specialist, 1 hazmat technician, and ~5 security guards; includes daily playback technician time (partial FTE) and benefits.

[#30] Procurement, recordkeeping, interdepartmental coordination and site management overhead (10–20% of direct recurring costs).

[#11, #13, #16, #17, #21, #28, #29] Ongoing curator time & library maintenance, software hosting & backups, medical surveillance/occupational health, periodic toxicology/environmental sampling, drills & training, translation/language support, and psychological/behavioral research efforts.

[#20] Annual reserve for emergency repair, equipment replacement, remediation and covert contingencies.

[#22, #23] Legal/compliance permitting, counsel, and OPSEC/cover‑story expenses to maintain plausible deniability and manage external inquiries.

[#7, #8, #18] Hazardous/medical waste handling & disposal, consumable PPE replacements, and experiment consumables (sample items / sacrificial materials).

[#25] Retainer / standby fees for specialized transport, crane/vehicle availability and route security if relocation required.

[#1, #5, #19] Regular containment inspections, structural preventative maintenance, some small repairs to chamber, door hardware, and associated systems.

[#4, #27] HEPA/activated carbon/particulate prefilter replacements and energy costs for continuous ventilation / negative pressure systems.

[#14] Operations for lockers, bag searches, inventory software hosting, and periodic audits to prevent unauthorized items <2kg.

[#5] Annual inspections, recharge and certification costs for automatic suppression and portable extinguishers.

[#24] Ongoing secure offsite backups, air‑gapped storage maintenance and archival media refresh.

[#26] Maintenance and minor repairs for remote handling tools / robotic manipulators.

[#3] Annual maintenance, replacement and storage costs for hardened audio/video components and logging storage maintenance.

[#15] Calibration and maintenance of VOC/hydrocarbon detectors, oxygen sensors, smoke/thermal detectors and alarm integration.