hmm, wicked leather belt seems like the answer for leatherworking. amusingly enough, i just got the pattern today in a strat money run, and i'm stocking up on rugged leather on my alt.

thorium shells got shifted to grey out at 305 rather than 325, so they're definitely not the choice for engineering. i was thinking thorium tubes, but i definitely like the idea of repair bots - they have value beyond just being something to grind out levels on, though i doubt the materials will drop in value any time soon, unfortunately :-P