Re: 1969 starcraft mariner restoration
Welcome to iboats.
Looks like you need a few things.
Find a local aluminum welder and have the knee brace repaired
Next I would oder some Gluvit
gluvit and coat all those seams and rivets from the inside of the hull. That is one of the best insurance policies for stopping leaks and preventing future ones.
The transom will be 2 pieces of 3/4" plywood laminated together and yes about 4-5 coats of marine varnish works nicely. I would also use the Gluvit on all 4 wood edges.
The primary rule is NEVER use any of the pressure treated wood since it attacks aluminum.
Take a look at the supplies that iboats offers
Boat Paint, Repair & Maintenance - Boat Carpet, Fiberglass Repair, Antifouling and also take a look at the Starcraft
http://forums.iboats.com/starcraft-boats/starcraft-rebuilds-restorations-theyre-all-here-494143.html index of what people have done.
Are you going to re-install the bech seats that are removed? They are very important for the hull's support.
Have fun! Remember to service the wheel bearings on your trailer too.