gadget Dave in Scotland was the man for this, he did extensive experiments with decals to the point where he sent me some paper to print from laser printer which I did for him.
I think I still have some of that paper (in those days colour laser printers were beyond the reach of home users) I had one in my office.
I know he gave up the forums through ill health, here's hoping he made a full recovery, if you're looking in Dave sign up and show us what to do init? It would be good to hear from you again.