I have heard several of the regulars mention frame rust. I would think it would be obvious to see frame rust? Is it not obvious? It would seem that if I live in the Western U.S. (Washington and Idaho) and have never seen frame rust... is it a salt issue or a East coast issue mainly? My FJ40 is from Eastern Washington since new and has zero rust anywhere. Just trying to learn about where the frame rust usually appears? Thanks. I am trying to help a friend find one back east.