Why bother going to that site full of little Englishmen (New Zelanders, Australians,.....)? This link plus the fact NECG imports some components made by them is about the best they're likely to do.
Look G, I had a wonderful German medium-bore rifle I wanted to buy 30mm mounts for, so I feel your pain. I found ERA set at price of CZ550 rifle with rings. I unloaded that .375 to bright-eyed American of German descent bought new CZ550 with mounts + extra 30mm set + new Kahles 'Helia' scope and had enough money left to buy ample supply of 9.3x62 ammo from Able's. The fist shipment is scheduled to arrive today via UPS ground. It's up to you, but I would do some brainstorming.
You know, sometimes there's nothing like a NEW classic lookin' rifle for which parts and components are readily available, and the CZ 550 'Mannlicher' 9,3x62 is the best blend of power vs. gun size/wt in CZ litter.