Think I'm screwed

Hey, uh what is everyone's opinion on doing rivoted floorboards. I saw a video on it and honestly, I'm making ends meet and trying to have a fun car right now so I'm building thinking short term. When/if I get a good job out of college I'll fix it later more permanently, but could robot floorboards last me a few years?
You have more issues than floorboards. Floors are one thing but you have structural damage that if not fixed right could be the difference between life and death.

Floor sections can be riveted or bolted in, glued in, whatever but that torsion bar cross member needs to be done right or not at all.