I misread the requirements for the gas system in the boat, the original has got to be replaced. Ho Hum!
Fortunately this is a reasonably easy task all be it a bit messy, but its better to sort it now then its done.
First I made a hole saw guide
This is the new space behind the skirting board for the gas fire
I finally manged to get a coat of paint on the last bit of gritted roof. It's eating paint this textured surface! 7.5L to cover about 9sq/M. This means I can finally fit the solar panels next week providing the weather plays the game.