Here it is all buttoned up. I made a decent boom crutch and bungee cord loops that go under the hull.

I 3d printed some hooks to attach a bungee cord from one deck carlin to the other. Once the loops are in place under the hull, secondary hooks come up to the tent’s webbing loops. It’s a bit fiddly getting the tension right on everything but I think it’ll be more difficult to get the loops under the boat and attached to the tent all at the same time. The knot on the tail end tells me this is the first loop to put on which goes up towards the bow.

This way I can unhook a few to roll the tent back and not worry about the whole thing falling apart.