Looks like a fun project and you definately have a leg up in the suspension department. Should be a fun car when finished!
While I'm not particularly fond of the interiors on Fox bodies, I've always liked the exteriors especially near to the end of the run and they make *great* track cars with all the suspension available for them (i.e. Griggs, Maximum Motorsports, etc.) and you can get deals on them all day long.
I think they will pick up in popularity in time. They were very popular back in the late 80s/early 90s, now they've taken a backseat to the newer stuff. What goes around comes around, and once people realize the deals they can get on these things and the potential they'll be popular again. The only bad thing is smog requirements if you are (un)fortunate to live in such a state.
I am looking to buy a notchback for a track car within the next year or so, preferably one that's already done and is being sold because of a baby/marriage/divorce or something along those lines. Even with all the goodies on them you can get a good deal on them.
Here's me having some fun in a '91 Saleen:
And since I know I'll be asked... no I didn't save it.