If anyone's interested, I can locate and ship these engines any time.

No, I haven't done it before, but that's never stopped me in the past.

As my nephew lamented the other day, "Yanks are paying a thousand bucks for those engines, and here we can find them on the tip!" It's true, whether you want the crossflow head in iron or aluminum, or if you want to go to the OHC head, there are stacks of them around.