Why are you so interested in the original ram banks???
I know some sites that carries the original sounds but I don't think they are any good. There are much better sounds around on the net!
Here's a site with some original sounds RAM1 and 2 only for EX and RAM3 for A/D. Twilek have also many of the sounds around for the WS so give the site a peek:
http://hem.fyristorg.com/twilek/wssyx.htm PEO!