Well if you're gonna scrap them....
Those pistons aren't going to be a problem, this isn't on the deck its underneath, where there is the least amount of stress. If the valve reliefs or face or something was all nicked up then yeah i'd toss them. But not on the bottom side. Hell, we use forged 289 pistons all the time cause they're half the cost of the forged 302 pistons you just have to remove a tiny amount of material near the wrist pin. I've had 5 motors like this. One with well over 200k and no issues. Shawn has done countless like that.