Judging by your last comment, you want it all, but don't need stuff that will make you faster on the race track. So my advise would be to buy my car
Nah jk
Get a base with touring package, new or slightly used (<10k miles). That will run you high 20's. Then get a GTM TT, brakes, diff, wheels/tires and suspension. Should have an easy mustang beater with refinement and it will be ~$50k once all is said and done.
I've done all the research and know whats available, let me know if you want a project manager.