I had a character who could control any form of metal, and faced some dilemmas as well. Some of the ideas I used were:
TK: only to manipulate metal. Basically, I can lift things, but only with the metal that might be around. In your case, perhaps TK with fine manipulation to "work machine controls"
Mind Control: obviously limited to metal, but also to control power armored characters and robots (I was controlling the physical power suit, but not the body inside it; it was along for the ride).
I agree, however, that a small VPP is usually a good idea for "special circumstances." I had a 30 point VPP to make things like weapons and armor from cars, transformation attacks on large objects (of course, it took a long time), etc.