Thanks very much.
It's around 112cm long, 56cm high (need to check that. How long was the studio scale model? The Millennium Falcon is from the MPC Hoth Base diorama.
It is for sale, £900. I don't trust shipping, been though it's pretty sturdy, so it will need to be collected from Epsom in Surrey.
I'm selling as my collection of 80's toys has taken over, also I'm making my ultimate dream model: a massive Macross Armored Factory diorama, which needs a huge shelf.