Actually, of the 36 built only 54 remain. There is one for sale in NZ at the moment.
http://www.ebay.com/itm/121326328683
I wonder why they went to all that expense and made a '64 body when the '62-'63 bring far more money... real or copies.
The GTO wheelbase is 100mm longer that a 240Z but you can remove the spot welds on the front shock towers of a 240Z and reposition them 100mm forward, and then move the front cross-member forward 100mm so what was the rearward mounting point attaches to the forward mounting hole, then and you drill a new forward mounting hole, you will have similar wheelbase. Not that I'm suggesting anyone do it!
I'm a little concerned that the '64 in the clip doesn't have the wooden steering wheel... I hope my one will be comfortable enough.