Can anyone pass along the height of the headstock above the base?

Ralph,

I'm assuming two things, one, you haven't received a satisfactory answer
to your question and, two, you are asking the height of the spindle
center above the base.

In my DVR Instruction manual they show the distance from the base of the
lathe to the center of the spindle as 297 mm or 11-11/16"

Hope this helps,

Harry