Charlie,
I remember the saga of the first ride on mower well. In those days (mid 80s) the pound was significantly higher against the dollar and loads of savings could be made.
The ac landed at BZN to drop some guys off. Customs said we had to unload the ac totally to clear as it was the first port of entry.
As the mower appeared out the door - head customs man said thanks very much. Won't be necessary to unload - off you go to Kinloss.
Seem to remember that the movers stood and watched and offered no assistance whatsoever.
That, of course, was the first - been many more mowers ridden across the pond since