Hi YomY,
personally I don't know any place where to find nice scans of Bang! cards ...
The only one is mentioned in a previous post in this thread, but the scans you find there are not so "professional" ...
Anyway, if you like the game, you could play it anyway with proxies made of your own ...
It is possible to find an xls file with the complete information of the cards
Names, Wordings, how many of each kind, Poker seeds and values. (by the way, for srab, this is maybe the only file abount Bang that was not possible to find on this site ). In this moment I don't remember where it was, but if you I let you know ...