I don't like the idea of making ships cost an arm and a leg to build. I kinda support the current system but It would need several tweeks to make it work.
the real problem I have with making a brig cost 300k to build would be, no one would pvp in anything but a free ship. makes the game kinda boring imo.
if anything, we should reduce the cost of ships to make it so anyone could afford them and make the upgrades cost an arm and a leg.
however, I think it should cost a lot of labor hours or real hours, depending on how you want to look at it to build ships. as it sits, it seems like it does take a lot of time to build a decently sized ship and upgrade it past basic.