Suspension From Stock Upgrade/ 5 Lug/ Fr500s

FR500's

Assuming you don't go crazy with tire width all you need is sn brakes up front. 94-95gt/v6 specifically and ranger axles in the back if you do not want to do a disc conversion.

Here's a good start for all new parts, only problem is the spindles are wrong unless you get a Maximum Motorsports K member to correct it... you really want 94/95 spindles for a stock front K Member. http://www.maximummotorsports.com/tech_front_susp_spindle_warning.aspx

https://lmr.com/item/SVE-2300AK/Fox-Mustang-5-Lug-Conversion-Kit

Then you'll need wheels/tires.

As for the suspension, it's way easier to do it all once so look to Maximum Motorsports there as well. I highly recommend coilovers from them and suggest you call them to decide on spring rates as that will drastically effect the ride quality vs. handling and those guys (Jack specifically) can really help you out. I'd say go MM coilovers in the front with their caster/camber plates and matching shocks and whatever rear springs they recommend along with their adjustable lower rear control arms and new stock factory upper control arms (no poly bushings).

http://www.maximummotorsports.com/faq_coilover.aspx
http://www.maximummotorsports.com/FAQs-Tech-Tips-C588.aspx

Maximum Motorsport

Contact them and they will give you great advice (and sell you great products if you so choose).