I've done brake work. It's easy. The pads tend to desintregrate when they sit. Also, did you get it running? It's probably blown up if he wouldn't give you the key. Keys.. I dunno, I just lost mine on the way to get it copied, and I'm looking for an entire ignition switch too.. Anybody know of one?
Any questions on brakes, just ask. I'd suggest while you're in there, change out the actual cables. The old ones tend to be weird and stretchy / breaky.