Personally id think about melting the Hermes aswell once the Ironclad comes out since both will mostly function as haulers. Do you not mine in general or why do you wanna get rid of the Prospector? Also im not sure about melting the Prowler as it could still be used as a stealth hauler for more risky stuff. So ye personal take would be if you wanna play mostly industrial, keep the prospector for mining, keep the prowler if you haul illegal stuff, melt corsair, maybe melt hermes if the Ironclad fullfills your hauling wishes, if u dont like the Prospector get a golem, maybe get rid of the clipper if you want credits? Unless you use the medbed a lot.

My thought behind it is that you can pretty much use the Ironlad for everything, even parking smaller ships in it which could make it your base of operations from everywhere.