I am looking at a FJ62 locally that appears to be in pretty good condition except it has a decent amount of rust on the frame. Would I just be throwing $4000 down the toilet if I bought this truck? I don't know what to expect or look for with a rusted frame. I am going to see it in about an hour, but I will not be making an offer today. I know to look for rust in the rain gutter, wheel wells, door frames, and around the wind shield. I have also read to pay attention to how it is shifting. Anything else I am missing?