building the rim wouldnt be an issue since all our little experiments

but getting the tyres has been the problem ( and I hate buffing)
although they are "available", after months of annoying the shop , we gave up trying, we just aren't a big enough customer.
I suppose we could just buy them from france, but if you cant buld a yacht from locally available materials then you are facing a battle to keep the interest, despite being some of the cheapest yachts in the world.
vic an now me have copped some flak for not sticking with wheelbarrow wheels, and even for building minis instead of sticking to the 5
the other thing to consider is tyre wear.
on our salt I have significantly worn my 2 ply hookworms in only 3 sessions , not even racing. yet on walyungup vic gets seasons from his tyres. these are heavy walled tyres compared to those fat larry jobs. i reckon I could trash one in a day ondry salt.
back in 2006 I watched 2 standarts on lefroy sail off damp salt onto some really dry smooth stuff. they were both on what they considered 1/2 worn hutchinsons.
the first yacht blew a tyre after about 300m, then the second blew 2 at about 500m.
you would certainly want to consider your tyre options if you were going to sail a standart on lefroy