Here is the Walther Rotex R8. Sure looks like an 850 with a wood stock to me.
Again it looks like its going to be about 400 British pounds, or about 670.00 US dollars. Not so sure how that will go over here in the states. With its 200cc buddy bottle an FAC version would not get the greatest shot count either, depending on valving, and if its regulated.
Grumpy