Good luck with the hunt. It took a concerted effort of scouring google images every few weeks for a good few years to find mine. As My Teenage Self has said the States is probably your best bet. Joining some of the stateside forums and posting wanted adds may bear fruit.
As for sizes I have no idea what size mine is. It didn't even cross my mind to find out. Any reach issues will be sorted out by stem length, although when I had my quick ride around the block before dismantling it, it felt about right