There are some vidoes out there, here is one https://www.youtube.com/watch?v=gV6audEMMEc

If you have time, cut off wheels, and a welder then you can't make it any worse. Have fun.

If I really needed to save that car, I would go big. Get a parts car. Mount yours on a rack/frame. Brace from the dash to the read deck. Cut the entire rocker and floor out. Weld in the cuts from the parts car.