[#25] Large contingency reserve for salvage or neutralization if SCP breaches containment (single-major-event reserve).

[#2, #5, #6, #7, #10, #11, #26] Heavy marine chain and connectors, purchase of work-class ROVs/AUVs, mothership purchase, naval mines procurement, surveillance buoy array deployment, initial power/comms hardware, and data management hardware (combined estimate).

[#1, #3, #12, #14] Anchor fabrication/procurement, deployment engineering for installation, corrosion/cathodic protection installation, and ballast/buoyancy system installation (combined estimate: anchors $20,000,000; installation/engineering $8,000,000; corrosion install $500,000; ballast install $3,000,000).

[#9] Contingency reserve for mine cleanup, demilitarization, environmental mitigation in the event of a detonation or major contamination (single-event estimate set aside).

[#21] Initial reserve fund for indemnities, compensation pools, or clandestine settlements.

[#23] Capital set-aside for eventual full-system replacement cycles (anchors, mines, ROVs) over multi-year horizon.

[#15, #16] Initial radiological/contaminant survey and setup plus laboratory buildout for sample processing and containment (combined estimate).

[#8] One-time specialized minelaying and deployment costs (ship/tasking, moorings, initial servicing).

[#18] One-time retainer/setup costs for mutual-aid agreements and rapid-response planning/exercises.

[#19] Initial legal/diplomatic effort to arrange charting, exclusion zones, and covert agreements.

[#20] Initial setup costs for cover stories, shell corporations, and media/administrative black-budget setup.

[#4, #10, #15, #16, #22, #24, #26] Periodic inspection missions (ROV/AUV operations), surveillance array maintenance, ongoing radiological/contaminant monitoring, lab operational costs, satellite imagery/overflight feeds, environmental monitoring, and classified data management operations (combined recurring monitoring and research budget).

[#6, #27] Dedicated mothership operations/crew/maintenance and miscellaneous port/harbor fees, fuel, spare parts logistics and crew rotations.

[#7, #8] Annual servicing, EOD teams, battery replacement, mooring upkeep and mine lifecycle management for the minefield.

[#17] Salaries for permanent and rotating personnel: ROV pilots, marine engineers, scientists, MTF operators, security, ship crew, and admin (estimated staff payroll and benefits).

[#12, #13, #14] Annual corrosion replacement/cathodic protection, periodic anchor/mooring re-tensioning and major servicing events, and ballast/pump maintenance (combined estimate).

[#9] Annual budget for mine replacement, disposal operations, and environmental disposals contingency.

[#23] Annualized capital reserve for full-system refresh cycles (anchors, mines, ROV fleets) amortized over 5–20 years.

[#19, #20, #28] Ongoing legal/diplomatic reimbursements, public cover story maintenance, liaison/compensation to fisheries and coastal stakeholders, NOTAM/notice issuance and leak monitoring.

[#18] Retainer and readiness costs to mobilize naval assets, aircraft and ordnance teams on short notice.

[#21] Annual premiums/indemnity fund replenishment and liability coverage costs.

[#5, #11] Annual maintenance for ROVs/AUVs (consumables, cameras, thrusters) and power/comms replacement/battery refresh costs.

[#2] Annual replacement of sacrificial chain links, small fittings, consumables tied to chain and connectors; (separate larger maintenance budgets exist elsewhere).