1949chevrolettruck, applying bondo to any vehicle is not metal straightening, it is plastering. Long before the advent of bondo, true craftsmen were repairing damaged sheet metal by actually putting it back to its original contours using simple tools like body hammers and dolly blocks, various files and oxy-acetylene welding equipment.
It's not rocket science but it does require patience and practice. When I got my '36 Chevy pickup in 1965 it was rough. For example, the bottoms of the doors were rusted away and the bed looked like a sack full of rocks.
I learned old school metal straightening and patch welding. If you give me your email address I'll send you a picture of the finished product as it looks today, 35 years after the restoration was finished without using any bondo.
If I can do it, anyone can. I'm a geologist not an automotive professional of any kind.
