Yeah, just get em off the Exchange. Green ones cost nothing. Blue ones even not that bad. Could even go for purples. Only one that's worth anything is the Crystal Woven, which I upgraded to MkXII and keep for my captain. Those are account bound anyway. When you don't need them, stick them on Boffs that you don't generally use on the ground. That way, when you want it, just open your Character screen, go to the Boffs that have your EV suits and grab them. Then put them on yourself and your real ground Boffs and there you go. No inventory space taken up, no runs to the bank.