Not sure what you mean by "pod" but in the Fed-5 landsailor in your first picture, the mast sets in a cup at the bottom and a ring about a foot or two above the cup.
How about bolt a cup to the bottom of the dolphin striker and the ring to the main beam?
A landsailer doesn't go downwind (at least relative to apparent wind) - that sort of rig might need some modification for a waterborne boat.
May be merit to in front of the beam and below, but does an unstayed rig on a seemingly massive beam need a dolphin striker? Thinking more about a striker like post that extends below the main beam may provide the necessary support for a cup/pod/mast base.
Not doubting you Wouter but do you really think this adhesive will work? Or is it, let's prove it won't work? It certainly seems very simplistic.
