Character #4 - Term 6, Term 7
For a ship in High Guard there is the Free Trader Type-A.
With a few modifications I think it will work out fine (with Net cost and reduction in tonnage)
Improve Civilian Sensors to Improved Military Sensors: (1.3MCr, 4 power, 2 tons)
Add Pulse Laser Turret (1 MCr, 5 power, 1 ton)
Add Ion Barbette (6 MCr, 10 power, 5 tons)
Add Holographic Controls (2.5MCr)
Add Cargo Scoop (2 tons, 0.5MCr)
Add Forced Linkage TL 12 (2 tons, 0.1MCr)
Convert Power Plant to TL 8 Fusion 7ton (70 power, 3.5MCr) (net -0.5MCr, -3 tons)
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Adjusted Cargo: 67 tons of cargo, 56.242MCr purchase price.
-5 ship shares = 51.242MCr mortgage = 213,508.33 credits per month on top of
4,686.83 maintenance, 16,000 in life support = 234,195.66 due each month. Oof.
I might think about ripping out some of those low berths but I think I could use them as an impromptu brig? Not really that secure but they're not murderers either so if the other ship is crippled they can just put the crew in low berth and drop them off at the nearest port.