Newbie, just bought a 91 GT

Hello everyone, I apologize if this does not belong in this thread, I just recently bought a 91 Celica GT for $900 thought it was a steal, there are some body issues I am concerned with. I would like any and all input as to whether or not these are major issues that are not worth fixing (i doubt they are). Anyways, a small portion of the driver seat bracket is poking through the floor. And the rocker panel on the driver side is rotted out. Where can I get the floor pans for the 91 GT or how do I fix it, or is this unfixable for some reason? For now I have a piece of rebar wedged across the bracket to help hold the load (me). Thanks for looking