Hey Phil,
I didn't realize that the Krauser set up was the only 4 valve available. I recall that the rocker arms for each pair of exhaust and intake valves were cast as a single unit, and I've read they were noisy and hard to adjust. That's about all I remember.
The container to Germany sounds like a good idea, but I don't think it'll work for me, as I need to get a bike to France. From what I understand, and that's not much, it's difficult to import bikes into France for French registration. One needs to obtain a carte gris and without French provenance, it's apparently difficult. If you use a foreign registration in France, you get stopped more by the local men in blue.
I'll look forward to having a chance to speak with you at a future meeting of the local sohc group.
In the meantime, all best,
Ben