Thanks guys, I think I have 21 in hand now, with 3 more definitely on the way. I've just made deals to obtain some cards to be able to sell, purely to generate some paypal to buy some of the expensive ones on ebay...
It's an expensive set though! Beckett lists that there are 100 of them. However they also list that they are all numbered out of 10, but I know of at least 3 which aren't, therefore I am only collecting those actually numbered out of 10...