Oh! Paperweights! I have a bunch of those
Great for learning how to true front straps and checkering them, practicing fitting grip safeties, etc. The amount of work to turn one into a working gun...well, there's a reason the manufacturer said "fuck this" and decided to try to recoup the losses of machining the forged chunks into frames that they can't use otherwise.
I learned long ago...factory seconds/gunsmith specials are by and large not worth the cost or time unless your dad's a television repairman and he's got this ultimate set of tools...
There's exceptions to be sure and if you do have the time/energy/lack of give a shit, then go for it...but if you're looking for a hit-and-run "make it work" kind of a thing, anything more complicated than a P80 build fails on the time/energy/success continuum. For me, at least! YMMV of course. And you could always get lucky and find that is the only thing wrong with it.
The thing is, if they fucked up a grip bushing hole, that probably wasn't the only thing they fucked up...so be prepared for a cascade failure - first you find that one thing, then you find the sear and hammer pin holes aren't parallel to each other, then you find the magazine well was broached at an angle to the side, then you find that the thumb safety window is too small, then....you get the idea.