And because strictly speaking "If the ship is 1,000 tons or under, then the rules stated in Book 2 should be followed." for crewing (per HG2 pg32), here's the same TL15 set with Book 2 crewing rates, which come in a little cheaper (fewer crew) and with more freight volume (fewer staterooms).
-------
Ship: TLF 1K J1 Freighter B2 Crew
USP F-A711121-000000-00000-0 MCr 206.500 1 KTons
Crew: 5
TL: 15
Cargo: 798.000 Fuel: 110.000
Pilot, Navigator, 2 Engineers, Medic
5.0 Staterooms, 798.000 Tons Cargo
MCr 208.565 Singly (incl. Architects fees of MCr 2.065)
MCr 165.200 in Quantity
-------
Ship: TLF 1K J2 Freighter B2 Crew
USP F-A721221-000000-00000-0 MCr 276.500 1 KTons
Crew: 5
TL: 15
Cargo: 668.000 Fuel: 220.000
Pilot, Navigator, 2 Engineers, Medic
5.0 Staterooms, 668.000 Tons Cargo
MCr 279.265 Singly (incl. Architects fees of MCr 2.765)
MCr 221.200 in Quantity
-------
Ship: TLF 1K J3 Freighter B2 Crew
USP F-A7313S1-000000-00000-0 MCr 356.000 1 KTons
Crew: 6
TL: 15
Cargo: 534.000 Fuel: 330.000
Pilot, Navigator, 3 Engineers, Medic
6.0 Staterooms, 534.000 Tons Cargo
MCr 359.560 Singly (incl. Architects fees of MCr 3.560)
MCr 284.800 in Quantity
-------
Ship: TLF 1K J4 Freighter B2 Crew
USP F-A741441-000000-00000-0 MCr 438.500 1 KTons
Crew: 7
TL: 15
Cargo: 398.000 Fuel: 440.000
Pilot, Navigator, 4 Engineers, Medic
7.0 Staterooms, 398.000 Tons Cargo
MCr 442.885 Singly (incl. Architects fees of MCr 4.385)
MCr 350.800 in Quantity
-------
Ship: TLF 1K J5 Freighter B2 Crew
USP F-A751551-000000-00000-0 MCr 523.500 1 KTons
Crew: 7
TL: 15
Cargo: 267.000 Fuel: 550.000
Pilot, Navigator, 4 Engineers, Medic
7.0 Staterooms, 267.000 Tons Cargo
MCr 528.735 Singly (incl. Architects fees of MCr 5.235)
MCr 418.800 in Quantity
-------
Ship: TLF 1K J6 Freighter B2 Crew
USP F-A761661-000000-00000-0 MCr 604.000 1 KTons
Crew: 8
TL: 15
Cargo: 131.000 Fuel: 660.000
Pilot, Navigator, 5 Engineers, Medic
8.0 Staterooms, 131.000 Tons Cargo
MCr 610.040 Singly (incl. Architects fees of MCr 6.040)
MCr 483.200 in Quantity