I need some advice.

I just bought a 87 Shelby Z. Unfornuately, i got ripped off and now have bigger problems than I thought with this lemon. The floorboards and underframe are all rusted and gone. The fuel line is busted and pouring out gas. And there's a lot more wrong with the car. I'm just trying to decide whether to keep the car and fix it up or just junk it. Any ideas?

Its a 87 Dodge Daytona Shelby Z. Its a 2.2L turbo 2 engine, 5-spd, t-tops, and with 72k, (but not accurate because the odometer is broken). Is this car considered a collectors item?