Marty the wet method isn't too difficult if you have help. I put my ToM ones on no probs. I put the coin door side on with the hole there and cut around it.

Remember not to use too much windex etc on the decal, just enough to make it slippery. If you put too much, you then have to squiggy like mad and I reckon you lose some of the glue as well. So just make it slippery and then position it, get someone to hold it in place and squeeze the windex out. Leave it for a little while and then cut the edges off.

I didn't even take my machine apart, just removed any necessary hardware, bolts, hinges where needed and plugged up the holes with tissues, rags etc.