The ambulance has gone off to the body shop for its spray job so its back on the the boat now. The next job is to cut the window holes.
I am going to use my new toy the plasma cutter :-) I have made a template from ply wood which is 15mm smaller then the window hole.
The reason it's 15mm smaller all round is because the plasma nozzel center is 15mm away from the side of the nozzle body which will be run round the outside if the template.
To be sure its all going to work I cut a test hole in a sheet of thin steel.
That worked a treat.