Some time ago I copied the tailstock turret from a mates Schaublin 70. If you're going to copy something, copy the best! It has all the tools parallel to the lathe spindle axis, as a result I'm less likely to leave bits of me on the tools, it's also easier to make!
I only use it for small stuff, under 6mm diameter, mainly model aeroplane needle valve assemblies, as it's fairly small (62mm outside diameter) I used ER11 collet chucks from CTC instead of conventional chucks, they take up less room and allow two chucks to be fitted in adjacent tool positions.
It's a pain to set up, and really it's not very practical for less than a run of 6 or 7. Also it doesn't have the sexy automatic indexing, but it does work fairly well, and for small stuff well worth it.
cheers
Bill