I've been looking too and weighing my options.
I have read that the Warne rings for a CZ 527 are the best way to go, since the dovetail is deep enough for the Model 1 and the recoil lug is a screw that can simply be turned in & out of the way. They run around $50 and are easy to find.
Burris and CZ rings should also be good but you will have to machine the recoil lugs off the rings.
BTW - which English company? I'd like to check them out and see what they offer.
