I too echo getting plenty of quality training. No one ever got to be a good marksman by buying lots of guns. OP, you seem like you have the right mentality.
I'm a firm proponent of working your way up to the most gun you can confidently handle. The citizen-rifleman concept holds that you're almost never going to go on long campaigns or road marches with your weapon, so favor weight and all of its advantages. The SOG guys use short barrel carbines because they're carrying 100lb+ of other gear and typically hoof it for long distances. You're not going to do that. You have the luxury of getting a heavier, more powerful rifle.
So if you can work your way up to a .308 semi, do so. If you cannot work up the strength to handle one with steady off-hand shooting, it's not for you. I have personally shot a 16" AR-10 .308 that was lighter than my 20" AR-15 in 5.56, and it had a muzzle brake that reduced the the recoil to almost nothing. If I didn't already have (and was comfortable with) a longer barreled, heavier .308 I would have built one of these myself!
At least in my neck of the woods there are lots of very good intro and intermediate level courses to take. I'd earmark about a third of that budget for training. Another third for ammo (both to get expended in training and for long term storage...who knows what our likely Presidential candidates will decide to pull in the next couple years). The last third for the hardware.
Ten grand goes surprisingly quickly when buying quality firearms. That Wilson Combat is almost a third of that

I don't necessarily agree with one as a concealed carry piece. If you have to use it, that $3k investment might sit in an evidence locker for years, if not forever. A good AR plus a quality optic could be two or three grand, easy e.g. a Rainier Arms RUC + an Aimpoint red dot = over $2k.
My pick for 3 revolvers (knowing zero about your *future* level of comfort with recoil and hand strength/size):
S&W K-frame .22LR (K-22, 17, or 617)
S&W 627 PC 5" or 327 5" .357 Magnum.
S&W J-frame that best fits as a BUG (back up gun)
I'm from the school that says you start with a pump shotgun and move up to a semi later, but this seems to date me as a lot of new shooters are going straight for a Benelli or Mossberg 930.
I really wish you the best of luck and look forward to seeing the results of your training and purchasing decisions!