Pontoon neighbour (my skip raiding competitor) got a mast ladder, the kind that slots into the track and goes up with a halyard. About 12 meters and perfect.
I have a garageful of bits of stainless steel. One day I'll get round to using it for something.
My mate Skippy-
Eberspacher 24v heater unit
7mm forestay (ended up as my one piece jackstay on the 22ft boat)
Yards of tubing, 1/2 sheets of plywood.
All from the same (unnamed) marina.....