I wonder if you could fit the windlass
out to one side, clear of the dink. Sort of like some of the dashew boats do.
You could also take the chain further aft at the same time.
As far as the access from the Fwd hatch
goes. With a bit of thinking you might be able to set up the dingy lashings so that they can be cut from inside by reaching out the slightly open hatch
with a knife.
Then the dingy can be lifted enough so you can squeeze out. Not ideal, but better than nothing.
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