soo i just bought my 92 4x4 extended cab toyota... and the last guy had the stupid tonku cover or w/e i ripped the rails right out.. now i got the holes on the top of the bed walls soo i was wondering if i should sand it than bondo over it and paint it or just put my bed liner on the top of the bed walls too.. and i got a few dents in the bed should i bondo over the dents to make them smooth or put the spray on bed liner over the dents or .. do i have to get fixed