I love the idea. So much so, I mounted two. One on each side, stereo. Trashed the original data marine instruments and went with B&G Vulcan 7" touch mfd's.
I can reach them from the rail with a tiller extension in hand one hand.
Perfect position to keep in view while looking ahead.
I had to rebuild the bulkhead, filling in the old instrument holes. Then cutting new holes for the displays.