interior can be done by almost any place that does, you guesed it, interiors
exaust, a compitent muffler man can redo everything from the headers *manifolds* back, and give you more power out of it too.
www.jegs.com
they have alot of great crap
and if you can get your hands on a ford racing catalog that gives alot of great parts too.
Look for a chiltons manual for all the digrams on how to dissasemble/reasemble/restore your car
and for beer, dont drink it, it makes you fat, go strait for ethanol, much better