I know a gentleman named László MÁRKUS
(quick Hungarian lesson. Hungarians traditionally put their family name first then their given name. In recent years, to be more conforming with the rest of the world, many have reversed the order. Now when you have an unintelligible language like Hungarian and you start swapping name around it can get confusing as all get out. So, there is a trend to capitalize the family name so that no matter if it is first or second you can recognize it for what it is)
László's web page is http://silverwings.hu/
Not sure how he feels about going to Prague (long trip), but if he can not do it, maybe he knows someone who will. László is one of those people you meet in your travels that you will be grateful for having met. A gentleman and interesting to talk to. I'm just guessing here, but expect a charge of north of $1000. Figure 5.5 hours of drive time but you can break it up with a few stops (Pannonhalma and Cesky Krumlov for instance)
Its too long a train trip for me, but there are cheap non-stop flights on Czech Air. About $125 and 1.5 hours in the air.