Yes, the floating mount will work on all the LC 1/14 models as well as the LC12. There are way too many 35mm wide mini servos to list though. I'd suggest going back through the thread, or doing some googling to get an idea of what you might be interested in and ask about them here.
Just a few models that would work and will give you a starting point would be the SH series of Savox servos like the 1250, 1257 and the 1350, the Align DS535, DS530 and their metal case "m" variants, and the Trackstar TS-P12s.