Rust is when you have to hire a welder to patch a hole in your frame. Always inspect the area above the rear lower control arm mount. After I finish my suspension next week ( putting 890's in the back) I will post my before and after pics of my undercarriage painting.
I dont know how far you are from Sacramento, but someone was selling a TRD exhaust for 50 dollars from there in a 4runner he was parting out. Wont ship it unfortunately.