South Carolina hands down. Just talking tracks I have 3 1/8 mile tracks 45 minutes away that hold plenty of events from
March until about oct/nov and two that are open through the remainder weather permitting (typically 50° minimum temps) Then there are 2 1/4 mile tracks about 3 hours drive with the same operating parameters. Not to mention a bunch of 1/8 tracks scattered in each direction in under that 3 hour drive radius. All in NC/SC. Lots of engine shops, race shops, trans shops, head shops etc especially close to Charlotte, NC among other areas. Lots of lakes, countryside etc. You want services close by. No problem. You want desolate quite living yet not to far from those services? Again, no problem. Want to live really isolated and don’t mind a longer drive. It’s here.

My advice would be to do a VRBO, Air BnB, short term rental, extended vacation etc in any particular area and do some scouting around. Get a feel for the areas. You can find exactly what you want. Only thing is these days, the longer you wait and as time goes by the price goes up as with everything. There are no more deals or steals!