One comment on Rotary rables, my preference is for one with a 90:1 ratio.
This should give greater because one turn of the handle provides only 4 degrees rotation of the table.
At times this can be a nuisance but makes calculations a little easier (A 40:1 ratio means 9 degrees per turn of the handle, a 36:1 means 10 degrees per turn).
If you have any ambitions of gear cutting, then buy the division plates, and a Tailstock.
I aligned the tailstock to my HV6 by boring a 2MT blank arbor to be a close fit in the barrel of the Tailstock.
With the clamp screws loose on the tailstock, inserting the barrel into the bore of the arbor, in the HV6, aligns the tailstock for height,so that the clamp screws can then be tightened.
The key ways on the tailstock wer different from the T slots on the mill, so I made up and fitted stepped dowels.
HTH
Howard