Any idea of how many pins will be up and running at once? I imagine he would have to rotate them around as floor-space for 2000 sounds a bit expensive!

Not sure on the exact number of machines. Page 227 of Michael's second book has a photo of the drawings of the buildings, looks very impressive and big. It says that the buildings will be designed along the theme of amusement parks of the early 1900's. There will be sections dedicated to the designers and artists. Alan antipates all machines will be working and that visitors will be able to play most of them. It says with some of the more rare machines that these could possibly be played on pre-arranged special nights for real entusiasts. He is also planning on having old amusements and carnival items and he hopes to incorporate an old style picture theatre.