Just catching up on this thread . . .
I take it the outdrive is fine, the coupler is shot and the cause of the mechanical issue, but now we are onto the stringers, which probably was the cause of the coupler failing.
Seeing the engine move like that in the video was a bit scary.
Bmk10 you'll have to decide if restoring the boat's structure is worth it to you, or if you just want to part out the boat. If you fix the coupler, you will have a decent engine(I assume) and a decent outdrive.
The engine could sell quickly in the Spring, when everyone who didn't winterize properly is looking for a new engine/block. The outdrive could sell at any point. . . . you might get $2-3K total for the engine and outdrive.
Not sure how much you have $$$$ into the boat. Figure that a stringer/bulkhead/transom repair may cost $2-3K in materials and supplies. There are lots of folks here on iBoats to guide you, probably one of the best sites on the Internet in that regard. :thumb:
So, if you want to keep the boat, you will probably have to put about $3K into it, if you don't want to keep the boat, you might get $3-4K out of it by selling the engine/outdrive as described, along with a few other marketable items.
Your choice.