> C) are there any other little things I can do now, before it is warm
> enough to start with any epoxy steps?

How warm are you expecting it to be before starting?

> D) any other stray hints or suggestions?

This is a slightly odd heating solution but it works:set up hull panels for glueing, heat up poxy any old way you like, put 4mm ply over plastic covered joint place brick on joint,place clothes iron set on low on brick. Brick gets very warm, joint is solid in about 8hrs. if the floor is too cold then put a heating pad underneath the hull panels.

Have a pot of tea in the garage.