Looks like great for how long its been sitting.
Are those heat extractors/vents or is that just a
vinyl/paint?
Good luck fixing the header panel its alot of work, but in the end its well worth it.
I run auto-x aswell and I regulary beat Miatas and similar cars. The only cars that beat me are turbo Miatas, and the like. I recommend getting a 26mm rear antisway bar, Exel G struts, drop springs/Ground Control coilovers, poly bushings, front and rear strut bars.
The only mod I dont have out of those are the coilovers and thats going to be fixed soon. My car has very little body roll and handles like a dime. I need to upgrade my wheels and tires to 16x7 and 205s that should help alot.