There's a Manatee buddy that has a set of 350's on his boat. He carries a 9 ft. Caribe inflatable with a 9.9 two stroke, all coming from the previous owner. When I first saw the boat, the motor was being kept on the Caribe, and the port side davit was collapsing the deck under the davit mount. Who knows how long it was kept that way. The davits were fine, but if you go with that system, I'd make sure to mount load spreader and backing plates of some kind under the mount to protect your deck, especially if it's cored. I might have a photo of that system somewhere around here.
"I'd rather be happy than dignified".