Starter bolt stripped out, now what?

[Mrturner1]

Well I found the squeaking ticking noise finally, member trac209 suggested checking the starter and although the starter is working fine, one of the bolts doesn't even tighten down. The actual engine block looks like somebody dropped it while either removing or replacing it and the starter just broke off and they welded the peice back on the block. I recently had the engine out and noticed this weld job but I just figured it was fine.

Can I get a really small and lightweight starter that would hold in fine with one bolt? Any other ideas on fixing this?