Try working on vintage muscle cars!
You will be cutting holes from the inside with a cutting wheel.
Cut a 4x4 square on 3 sides, peel the floor/trunk back.
Get whats left of the bolt/cage out.
Make trapazoid washer, drill a oversize hole in the middle and weld a nut on the other side.
Install the bushings, run the bolt up into the "new" washer and tighten. Just make sure the new part you made will jam in place.
Afte it is all done, bend the flap back down and weld shut.
Fun, fun, fun!
You will be cutting holes from the inside with a cutting wheel.
Cut a 4x4 square on 3 sides, peel the floor/trunk back.
Get whats left of the bolt/cage out.
Make trapazoid washer, drill a oversize hole in the middle and weld a nut on the other side.
Install the bushings, run the bolt up into the "new" washer and tighten. Just make sure the new part you made will jam in place.
Afte it is all done, bend the flap back down and weld shut.
Fun, fun, fun!