You could minimize the higher mineral effect from the hull by sticking on enough organic weapons/armor to balance the minerals. Then you'd only lack a small amount of energy.
Raynor, the reason why you'd do this is because the shipyards build a certain amount of each resource per turn,, 1500 at start. So if you are building those Last few turns due to the higher minerals, that's 3,000 resources per turn (from org and rad combined) you're not adding to your ship design. Since refitting counts total resource cost of the original against the total of the desired design, the fastest way to retprofit up involves a balanced resource design at the beginning. Hmm that may have been worded poorly, but I think you should be able to figure out what I'm trying to say.
------------------
Compete in the Space Empires IV World Championship at
www.twingalaxies.com.