While doing a bit of research on cross-coupled gain stages, I came across this page. About halfway down, it has an electrostatic headphone amp circuit that I have never seen referenced here (head-fi) or on any headcase forum about DIY electrostatic headphone amps. All the parts are cheap and readily available, and you can easily use it with the standard gilmore PSU, so it should make a fairly simple build. Does anyone have any experience with it?
I like the idea, and wouldn't mind helping out.
CoffeeCutie, that is a nice looking design.