Do you need a class 1 medical for agricultural work??
My guess is a class 2 is okay? In fact, I thought that instruction is possible with a class 2? (U.K.)
You will not find any sponsorship here in the US, and unless a green card holder, you won't get any work.
I am sure that if you can get a class 2 JAA medical, you could find work in Europe?
Or, as usually is recommended on this site, find a nice girlie here in the US and tie the knot.