Bummer about the wait. Long way from the factory here I guess. Likely Hobie USA, France, GB then you.

There are metal fittings molded into the transom. You may have to drill through and reinforce from the inside.

For a temp repair I suggest installing inspection ports in the aft decks. Make some wood pieces that would fit through the hatch and then fit together in the transom. Fill the area with a dense flotation foam and set the wood into it. The foam creating a foundation for the wood. Then through bolt the pintels.

Just an idea... untried.