Hi Angelo,
I'm also keen to see how you go with this. I've booked my spray painter to do my Black Hole for me in a months time. I've requested him - once repairs made to clear in between all coats and final clear to be a matt clear. Basically from having looked at Christopher Hutchins cabinet resprays I reckon its the best way to do it. (IMO).
I've ordered my stencils through pinballpal.
Just be aware that on some stencils they are out. I generally have a quick read on RGP to get opinions!