No - you don't have to bin the 9.3. In fact, 9.3 boxed version was the last SUSE that I consider fully industrial qualified. Since it became OpenSUSE, the 10.0 SUSE (slick) SUPER 10 and all variants up to the present 10.2 had a problem with YAST and YUM updating. I understand these have been resolved with the latest 10.2.
As far as I know, if a Linux system can do RAM drives at all, it can be done in SUSE. It may require the right kernel module or command to show up as a device in /dev, and indeed most RAM disk hardware is made to appear to a system as if it is a regular drive. You might only need to mount it, partition it, put a filesystem on it, etc.