I owned a Longslide Hardballer in .45ACP, and it was a good shooter, and fed anything reliably with a little work on the ramp (not much work at all- mostly just cleaning up a rough spot at the top and polish).
OTOH, a friend had one that broke things I didn't think you could break. I felt bad as he bought it on my recommendation, and I think we replaced everything but the frame, slide, trigger and hammer before it would make it to the range twice without breaking! Oddly, it functioned fine, when parts weren't flying off it.
So, it's kind of a roll of the dice.
IF I had reason to believe it was reasonably reliable, I might go US$500.00. I might go US$400.00 if I was looking for a project- there's a special fondness for a pistol you raised from a pup.