Purchased my Paragon stencils here. Have not applied them yet, but know Wotto has and he was very happy with them.
http://www.pinballpal.com/products/stencil/
I believe Mark CLAYTON (owner of pinballpal) was/is quite ill unfortunately. Although he makes great stencils, I don't know whether he is back on his feet producing yet. I would suggest to email them and wait for a reply before ordering.
I have had some troubling results from other manufacturers of stencils (****NOT RETROPIN / GAVIN** *) from an overseas company. The material they used was almost as sticky as mylar and lifted the base coat clean off the cabinet. I have read / heard stories of another O/S manufacturer whereby the differing colour layers do not even come close to matching.