u/uncreative767

I have a 2003 monte carlo Jeff Gordon edition. Long story short its ny second car and I dont need to drive it at all(plenty of time to work on it). I want to get it to a point where its structurally stable. Dosnt need to look great (its all on the bottom anyway) would it be possible to cut out all of the rot and weld in some square steel tubing or something? This was my first car and id love to save it. Any advice would be great. Im willing to do fabrication (ill have to learn as i go)