My friend (Shim on NS) and I ran into a problem when trying to get our skis mounted. None of the local shops had the jig for a Marker Jester/Griffon. We decided to freehand mount our own bindings without the jig, but with very little info on the net it was pretty hard to do. Anyway, this video is us going step by step through the mounting process. Hopefully it can help somebody else in the future.
You should not attempt this unless you have a good technical knowledge and know what you're doing. Remember, you can't measure enough times, but you only get one chance to drill... don't ruin your skis by being lazy. In the vid we mount a set of Griffons, however the principal to making the jig is pretty much the same for all bindings with a track. Good luck, post any questions/discussion here.
How To: Freehand Mount Ski Bindings from steve power on Vimeo.