hi, i have a boxed SuperGrafx in VGC, and i'm in the UK. I would be looking for 90 GBP (which would include postage). let me know if you want it. (it is RGB modified, too, and includes console, RGB scart cable, 110v psu, 1 controller , and instructions all VGC). i have pics if you need them.
i have 99% + ebay feedback, username dc906270
i am a regular poster on shmups.com, with lots of good feedback there too