Any forum members in the Huntsville Texas area? There is a 1984 Maule M-6-235B that has my interest.

If it is truly an M6-235 "B", then it has been modified with Universal wings.
Original M6-235 wings had droop tips. 1986 onward had squared end tips with larger ailerons and rudder. The Universal B wing has different fuel tanks and aileron hinge post positions.