Spaceships: Artificial Gravity (and presumably, Compensators)
Going by Space Stations, it varies depending tech level. Normally, you wouldn't expect Compensators to be part of the package, but the hull cost for a tech level twelve artificial gravity hulls is a hundred thousand schmuckers, which is the same price you pay for capital ship hulls. The floating variant is sixty thousand, however, if you took from that the cost per ton of artificial gravity (and possibly compensators) is forty thousand, you might actually be wrong.
At tech level eight, there is no difference between hull prices. Structural strength may have complicated the calculations, but not quite to the degree shown, nor does it quite seem in sync with HG low/high technology hulls.
While no mention is made of how large tech level seven and eight manufacturing process can build space stations, mention is made that at nine you can have hundred thousand tons, something that the onboard computer can't control until tech level thirteen.
I guess that you could mix and match, though the vagueness on the potential hull size of tech level seven and eight makes it a risky call, though going by table progression, that could five and ten thousand tons respectively.
The cost for non gravity hulls is likely to be wrong, since demountable tanks cost a thousand per ton, and even allowing for interior furnishing, wiring and plumbing, wouldn't really push the price up between ten to a hundred times.
It should be noted, that at tech level eight, if you built a hundred ton station, the hull would cost the same as an Alphabet hundred ton hull. With or without artificial gravity.