If anyone's still interested in having one of these, the site dick.biz still seems to have them at a bargain price of 335 euros without MwSt (VAT).
For those who don't speak German you need to click on the link messer(knives) at the top of the page and then click the category rasiermesser. Here you'll find the Pierre Thiers razor and others to include a neat Japanese style straight.