Which vax-vms license for a microvax II with VCB-02?

I've been wracking my brain over which license I need for VMS 5.2 on a microvax-II with a VCB-02 graphics module installed? I understand that I could just use the hobbyist licenses, but I bought the system with a legitimate VMS license and want to keep it as close to the original configuration as possible (I have other microvax systems with hobbyist 7.x). Unfortunately there is no vmslicense/charge like you have with vms 5.3 and beyond. I'm testing by connecting up a terminal to a serial port (not the console, thats a different problem, won't work with VCB-02 installed unless you are in debug), and trying to log in. Right now I'm getting license exceeded. I figured I would just need a workstation license, but this doesn't seem to have worked. Kevin