The engine is back down. The rest of the bolts went in this morning. The fit is really tight, but is at a better angle to the shaft than before thus reducing the angle the Aquadrive must account for to only about two degrees. The test fit of the shaft and stern tube went fine. The keel trim tab is mostly glued back in place with a rather lot of epoxy thickened with silica. Spots of dry glass are ground out. Next up will be to lay fabric on the joint. Following that I will use a foam replica of the end of the stern tube that was whacked off (minus about a half inch on all sides) as a mold to build up the new one. I figured the usual 12:1 chamfer and ground that away. Fairing will take numerous iterations of filling, sanding, guide coat, beer, etc.