Just to update...
I finally got around to installing a few parts on the ski. Note worthy may be the TBM flywheel. For those considering this mod, here's a few notes I learned:
1. Can be changed with engine in hull. It was actually really easy and took about 1 -1.5 hours with a major interruption in the middle.
2. I used a spark plug thread chase from Autozone ($6.99). I tried it dry first and could not get the flywheel to budge. I rapped the snout lightly a few times and nothing. Next, I applied anti-sieze to the threads and the tip of the chase, and it took VERY LITTLE torque to get the stocker off. MAJOR difference. Also used a crescent wrench on the stock flywheel to keep it from turning.
3. Clean mating surfaces very well with brake cleaner and rag.
4. Red loctite on the flywheel bolt, oil under the bolt head and aluminum spacer, torqued to 65 ft lbs. Rope in the Mag cylinder to keep engine from turning during torque.
5. Hold the stock o-ring in the cover with a dap of grease here and there.
6. Blue loctite on the cover bolts, snugged down.
Started right up, looking forward to testing at the lake this weekend. It was actually really simple for me with the right tools.
Next up will be X-metal handlepole, steering, and footholds. I have the parts, but not the time to install yet. Need to order some glass supplies for the footholds. Also need to order a wet pipe. Anyway, hopefully these basic flywheel instructions will help someone else in the future.