How much shaking we talking about? My 1970's Evinrude vibrates the hull at low speed, but not something I would think abnormal for an engine of that age. As for the carbs, you using a ethanol based fuel, you using a fuel stabilizer?
SHSU
JB water weld works good, or JB weld with a backing plate for the holes. As for Fiberglass on the transom, usually 2 or three is all you need. Just make sure to account for the extra thickness of the fiberglass build up when cutting your transom.
SHSU
If you are taking bow out of the front cover, make sure the windows won't be impacted. I found my windows were designed for a curve, so going flat wouldn't have worked with the original windows.
SHSU
Is that the flooring? I don't think they used gelcoat, but could be wrong. Most of us replace the floor since we are doing all the other work anyways. Plenty of guys have used some form of non slip on their decks to seal/cover.
SHSU
If I read that last part correct,
Congrats!!!! A new Admiral in the family just bumps up the need to finish the project to spend time as a family. Nicely done sir
SHSU
Yep, depending on how much room/slack you want in your system. Shouldn't affect steering, just aesthetics/space.
I initially tried marine grease to lube mine, but found it was what was gunking up my system. I have since switched to WD40 to clean out and lube. Maybe a lighter grease would be...