You seem to be a very lucky man. sort of. I have a GVP 1230 with 4mb ram. the accerlerator is broken, never worked. so maybe the ram is aswell...you can have it I s'pose, as it's no use to me.
But (and there is always a but) I won't be back in the UK for at least 3 months (possibly longer)...maybe someone at home can dig it out for you...