I was in the same boat a few months back. They is a review of the Tau MK8 on you tube and if you look really hard some info about some eastern euro junior champion shooting one. You'd of thought the importer would have done something or is that just me !. As for the Rohm its not a match pistol so look else were. Morini's, FWB's and the like do come up on here,BUT YOU HAVE TO BE QUICK. My advice would be have an idea of which one suits you check on here very often.
You may have to buy something with a grip that does not suit your hand but the are plenty second hand one kicking around. The cylinder will be out of date which only matters at bigger competitions, shooting at you club or postal comp's it's fine. And be patient, one will come up, well probably three in a week.