Jay,
I'll send you a DM about mailing the template but it's really easy to make if you have a router. The template I made does not have mounting holes so you can just flip it over if installing to starboard but I'd recommend against it. It won't matter for operating at slow speed but it will definitely obstruct your view on starboard when you're on plane so think about that. I used the holes in the anchor roller and the rails for mounting with longer bolts + 6 more for good measure and it's solid.
One design factor I didn't consider mounting under the pulpit, the TM was a bit too low to secure it when stowed without the head contacting the deck of the gunnel. To address that I mounted the TM on top of a 1/2" piece of starboard I routed to the shape of the aluminum plate. That gave me enough clearance to use the mounting bracket it comes with and it does not contact anything. One unintended benefit of the weight of the TM and batteries in the bow has balanced the boat so my back deck stays dry now, even with a full tank and bait well.
After a summer of use in pleased with the way it turned out. I don't think I needed the 90" but it's never popped out of the water in rough conditions. In normal conditions I set the stop so the head is at the height of the bow rail, that gives me leverage which makes stowing easier and that way in shallow water, the skeg of my main engine will (hopefully) hit bottom before the TM does.
