Need starter advice

My 69 Mach 1 was a victim of the flooding in the Philippines in late September. It's been thoroughly cleaned, engine flushed and interior refurbished. However, my buddy who's been bringing her back to life has now told me that the starter has probably gone kaput. He's gonna try and get it fixed but he's also asking me to start looking for a replacement.

The engine is a mostly stock 351W and the tranny is a C6. Could someone give me a recommendation for a starter in Summit or JEGS? I might switch over to a 164-tooth C4 some time in the future....will the starter work for both trannys???

Thanks for the advice. A friend of mine ordered the same starter that you recommended and he noticed that it had ten teeth on its gear while his old starter had nine teeth so it wouldn't fit. My starter also has nine teeth. I'm wondering if Summit screwed up and sent him the wrong starter or whether it really won't fit my car.......