To get around these problems, most off-shore cruising boats mount the dinghy on deck. The problem with the IP line of boats is there is very little flat deck space to tie down something as big as a hard dinghy, which is why many owners go with an inflatable, but I will leave that argument for a discussion group.
To fit the dinghy, space had to be made. The only open space on the deck is the area just ahead of the mainsheet traveler. With the way the designer set up the main sheet rigging though this was not open enough, so some rerouting needed to be done.
A stand was made to hold the turning block off the deck and the sheet was rerouted to go back to the traveler before going forward. This opened up the deck space without significantly changing the dynamics of the sheet action on the boom.
Sofar I have been through a number of strong blows with more mainsail up than I should have and have had no problems with the turning block or its mount.
The one real short coming of this arrangement is the reduced visibility forward. It means that the crew keeping watch needs to stand up and look over the dodger every 5 minutes or so. In sheltered waters I can tow the dink in order to open up the deck space.
The dinghy sits upside down on block on the coach roof. Those with sharp eyes will notice how the main sheet was rerouted.
The mounting for the turning block is roughed out in wood currently. I would like to redo it in FRP to match the deck color at some time. It could also be a little shorter and should have a slant to the top to better line up the run.