No need for anything fancy to start anyway, maybe never. Thinking of aftermarket before you even have the gun or have shot steel challenge??? My usual's are bone stock S&W 681 & a 617. An old pinned model 10 4" heavy barrel is a good one. There are no shortage of 1911's of various make, as well as Ruger MK's. MANY will work just fine. Go watch then try it. You may be able to buy a decent gun from one of the shooters. Good luck.