The spare parts for these little guns - and pretty much every other pocket pistol are in other folks' revolvers.
Spare parts are a "good thing", so if you can buy it priced accordingly, it's worth it.
Grips are another thing to be on the lookout for - those old hard-rubber ones are often fractured.
They aren't a real picnic to work on, but they're not all that hard, either - as long as you're patient.
One of the beauties of Lemonsqueezers and the like is that there are vast quantities of the things out there - still living in desk drawers, so finding a good one isn't too tough.
Scouts Out!