two years ago I bought my speed graphic from eBay and from European seller for 270 Euros (today's rate is USD 355). Fine and working condition with optar 135mm and kalart RF.

Perhaps not the cheapest, but as I got cheaper shipping costs (flatrate shipping from italy to finland) and needed no customs and taxes that way, it was good deal when comparing buying from US.

So pricing of speeds in Europe aren't always such high.