Casey,
This Willys has had quite a few modifications. We would have to see more detailed photos before we know for sure what you have.
The sheet metal might all be reproduction. Early on, (1970s), MD Juan didn't produce civilian body components. It's not uncommon to find mismatched sheet metal.
The grill has a mix of things going on, but the sure tell sign of an M38 grill are the horizontal holes down low on the front face. These were for the pivot pins that aloud the grill to hinge outward if engine service was needed. This feature is unique to an M38.
Large fuel filler opening...M38
Reinforced tailgate...M38
Bolted shut windshield vent...M38. Along with the park brake handle placement and the removable gauge cluster.
Again, with the limited views offered, I can't tell for sure whether this is a 2A, 3A or M38...but the sheet metal is M38...or reproduction M38.
Hawk