Kicking around a Wellesley idea. One more in the stash to play with, but what to do? I've seen them as twin-engined and, I believe, three-engined conversions, so that idea is covered. So how about...
NO engines?!
Those long wings might be practical for an assault glider. So you take a few from the scrapheap, remove the engine, lengthen the nose a bit to compensate for C of G, perhaps add a forward cockpit instead of the top one, maybe not, and Operation Overlord has a new silent infiltrator.