At a guess in Tassie suitable spare blocks of land should be available for a fair price
. Sheds to construct a boat inside not too much more.
Most of the tin sheds are built over simple foundations and could be disassembled and sold when the boat is built. Apparently farmers really like secondhand sheds. Buying second hand scaffolding to go round the boat would make the process quicker and way safer and could also be sold after the boat is complete.
My question relates more to how long this is going to take. A 45' steel
mono is starting to look at 10,000 hours, so unless you're stuck in the same place for at least 5 years this is not going to add up.
To me a 40' ply (or even composite) cat makes more sense. The 40' Fusion can even be built in (it is claimed) not too much more than 3000 hours and for what looks to be a good price
But best of all must be to collect your pennies and buy a secondhand boat.