What?
Trainers, High wings?
Why would you want two wing sections? I'd epoxy them together, unless you plan on joining them with the typical tubes that you see on larger low wing aerobats and what a pain that would be for hi-wing trainers. As mentioned above, unless your driving a Mini, you shouldn't have any problem transporting even a 60" ws aircraft in a VW Bug. Save yourself the trouble and epoxy those suckers together...