Just removed the seat, rubber, and gas tank out of my '52 Chevy truck. The rust is not that bad. I picked up type of bristle pad that attaches to a drill. I started removing some of the heavy pieces but it picked up a load of dust. I then used coca-cola, but it left a nasty mess. I haven't used any manufactured removel jells. I heard they tend to leave some items black. Anyhow, wondering if you had some decent results with anything that doesn't cost a load of cash. I prommised the wife to keep the spending low.