Found them at eBay. The seller claims he's an authorized dealer but of course, I can't vouch for the validity of that claim. Fischer Audio seems like a relative unknown outside of the audiophile community so I doubt they're fake.
I'm the guy behind Bugden Audio.
I have great news, there was some stock in Russia that was put away and forgotten about, which has recently been found, so I will have an order placed with them this week and should have more stock in 2 weeks, 3 weeks at worst. It's going to be sent via EMS, so it should arrive soon. If you place an order it will be sent as soon as stock arrives.
The previous ETA for new stock was the end of March/early April, so this is really good news.