they make metal and fiberglass widebody flare kits mike. It's really not an issue, just make sure you buy a 74 and up model (long wheel base) pre 74 (the years i want) are a shorter wheel base and have the curved hood. Since your going to scrap the engine anyways look for a 75-77 those are the most undesireable 911's to have as the 2.7 litter liked to self destruct, however I shouldn't have to tell you this. Carrera models have the wider rear flares, turbos are even wider. Like I said though, it's really easy to weld on some fender flares bro, plus then you can go as wide as you want.
Just makes me want to cry to think of a 911 being destroyed for domestic pleasure
---die hard 911 enthusiast---
-Ed