The Fox market is healthy around here... There are quite a few junky cars floating around for $1500 or less, some slightly rough around the edges cars going up to around $5000, and then you start finding clean ones for over $5000 and immaculate or very highly modded/built pushing $10k or more. I paid $7000 for mine after a few months of searching and not finding anything worth spending my money on. When I bought it, it had 65,9XX miles. It's an original 5.0/5spd, original paint, interior, wheels, etc, and had working AC at the time (but it has since gone out). It already had a few of the more expensive "cheap" mods- Cobra intake, 3.73 gear, exhaust, shifter, springs, shocks/struts. I've done a few more minor things, but it remains mostly stock, and is loads of fun.
Jeff, whatever you decide to do, it comes down to it being your car. Just enjoy it!