As I read your post and the answers, I wonder what kinds of equipment you have experience working with.
Auto's
Trucks
Outboard Motors (boats)
Motorcycles
Stationary equipment (construction & industry)
Agricultural machinery
Diesel
I often am up early watching an Agricultural Report on TV called AgDay and listen to them talking about Jobs in agriculture that they are having difficulties finding skilled workers to fill. Maintenance of farm equipment is always mentioned. If you were to work on Farm Equipment and travel around he country doing this you may find work where you could lay over working for a week at a time (or whatever time you could agree on even if it is seasonal) in order to fund your travels.
I would suggest that you be clear about seeking temporary work, or taking on short term projects.
If you want to investigate this further you can watch the daily 1/2 hour shows which are archived here:
http://www.agweb.com/agday/
But they are always saying that there are lots of jobs in Agriculture that are available.