I bought a couple of lots off ebay, and wound up with: TI57, TI55, The MBA, SR 51A, TI57 LCD, TI1025 and TI5025. I've also got Canon Palmtronic 8 and Palmtronic LD-8M 2, Lloyd's Accumatic 200, Corvus 312, Radio Shack EC-281, Sharp EL-218, Sears Pocket PD12, APF Mark 31, Novus 850, Montgomery Ward P50 and Commodore MM2SR.

I just bought a TI1200 and TI1250 (maybe I'll get lucky and one will have the 0952 and the other the 0972), but I only found the Barbie in a lot of 4, for too much $$$$.