Fisher 30 Ep 22 - Will this interior setup work?

I bought a 1976 Fisher 30 Northeaster motorsailer in great need of "some" TLC. Last year I did a lot on the exterior. Now it is mostly the interior. In this video I play with cardboard to measure the head and shower. Boatman John fine tune the templates for the teak railing. I cut the first of the new structural members (scary stuff) and I go to the marine shop to buy stuff on sale.