Those non-relieved target grips are noteworthy and hard to find: worth good money. The standard trigger was a normal thing back then. You did extremely well not letting me find that one. Excellent choice to buy it now.
Be cautious with those grips when reloasing, or place them somewhere with the gun and serial number written and use some with the cutout or whatever else you like. I paid $150 for a set of grips like that many years ago.