Rough 66 FS Cuda worth

It's all about condition and if engine starts and runs.
A rough early A, even Formula S, is a parts car to me. It's sad but it's hard to justify the time, effort and expense of fixing up a rough one.
In general it would be worth around $1200, maybe more if it has some great bumpers, tail lights and interior.
The difficult part is getting the seller to see it as a parts car.