I would like to set up OpenVMS+JDK on something I already have, which is x86-64 machines and Unix/Linux. The emulators PersonalAlpha, FreeAXP, and CHARON-AXP are Windows-only, so that seems to just leave ES40 Emulator. Comments on ES40 indicate that it's pretty rough. Any idea how much of a challenge to get it working right? Any other options?