Badger makes one with 22 moa built in. It was the perfect height with a set of medium rings and a zeis conquest. I do not know if your unimount has a cant to it or not.
Unfortunately I can't help you out at the moment, but if by chance you weren't in too big a hurry I should have AADMOUNTs available in 30mm in about two months. They are .25" higher than the ultra-high Unimount.