Yes, there are some very basic flex wing microlights with dodgy two stroke engines,
And fantastic fun they are too - although admittedly I'd rather not teach on a 3rd generation flexwing either. I don't mind doing a biennial, but beyond that I'll leave it to flexwing specialist instructors who have modern machines with training bars and dual controlled nosewheel steering.
But for a freelancer on a budget, for example, there are some very good cheap 2-stroke powered 3-axis aeroplanes the AX3, T600 or Chevvron for example.
G