Well first, I would ditch the factory stock and get a full length bedded stock from grey bull precision or the like. Ditch the factory trigger ang get a timney or Jewell trigger. FFP (for what you are doing, you dont need FFP) scopes are more expensive than the SFP ones so I would save myself some cash and get the vortex with the SFP. I would also get it to a smith and have him put a muzzle brake
on it if it doesn't already. After I wore that barrel out, I would send it to a smith and have a custom barrel put on it and have the action trued.
Grey bull precision stock: $350
Jewell trigger: $210
CSR or Pain killer muzzle brake w/smith work: $225
That leaves me $700 to $800 for a new vortex SFP scope.
Edited: didn't notice that you still have to buy the 20 MOA base and rings. Soooo, I would get all the stuff above and while I was waiting for the gun to get back from the smith, I would save my money and get the base and rings.