My understanding is that you can make anything u want for your own machine as a replacement part, as long as u dont onsell other copies etc.
What most people do, is make an extra dozen sets to sell which covers their original outlay of doing the first set, having to pay for artwork/someone's computer time plus the materials for the first set and set up time etc. But they may not be legal etc obviously.
If its only one machine u want to do, and if the artwork is faded only versus damaged, you could always pay someone who is very good with an airbrush etc and get them to touch up n re-do your own cabinet for you. People who are very good at airbrushing could probably knock it over in 3 or 4 hours. Even at $50 an hour, it would be money well spent. Thats what i have in mind, and that way, you dont have to worry about licences. The airbrush way is a safe way. Hope it helps. 
p.s - I have a brand new top ramp for a WCS 94 which you are welcome to for free if u need one. PM me your postal details if u need a brand new one for zilch !
I will take it off your hands, but not for free.lol so even if its a few dollars i would feel more comfortable about, cheers for the offer i really apreciate it. the ramp on my machine is dirty so a good clean one would save a tonne of time. your a legend mate.
