I have played this game some time ago when building a ship costed nothing(there was some type of station capability points which determinated how big ship can be constructed)
and now i have build a costy ship but selected a bad blueprint - it had no airlock. ship was built but thats all - it cannot be docket to station by pressing RMB on it
if ship isn't docket you cant dismantle it and its just waste of resources.

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From this point on everything is just some thoughts about game

i think it would help a lot if you could add some type of checks to determine if ship has airlock(so it can be docked and dismantled later) before building can be started.

and if i got it right you cant get 100% refund by scrapping ship. this means that you are wasting resources every time you have made some mistake in ship design. there is no way to quick save/load or simulate your ship before building(am i missing something?) which means your every build try will waste resources.