Do a search on the forums - Sabatti make a hammerless Paradox gun and you should be able to find older ones if you check out the various websites. If your friend would like to import one from the UK, I have a friend who is a dealer and whom I could introduce to you. As a matter of fact, both he and a very respectable member from California are set to start dealing in doubles from the UK very soon, but I'll let them announce that here.

Good hunting!