May not be the best price but finding just the Floating Center and Nut is harder than a complete Tailstock which could cost more. Always remember to watch the shipping costs on ebay. It can vary greatly. This is a seller I have bought from and would again.
Mark V completely upgraded to Mark 7
Mark V 520
All SPT's & 2 Power Stations
Model 10ER S/N R64000 first one I restored on bench w/ metal ends & retractable casters. Has Speed Changer, Model 4E Jointer, Jig Saw with lamp, a complete set of original accessories & much more.
Model 10E S/N 1077 oldest one I have restored. On bench w/ metal ends & retractable casters.