Ok figured I'd start a new thread as I start this project.
Havamax, thanks for the pictures if I can figure it out I'll put your picture link in here so people have a different reference point.
After looking at a lot of options and trying to determine what works best for us here is what we've come up with.
The kettle style is just not going to be the right fit for us, usually we cook larger amounts of food and when the kids are gone and it's just me and mom we will probably change things up but for now I've ordered a Magma Catalina.
It has a nice cooking area and the warming rack which I find myself using all the time at home.
As far as location I just can't bring myself to go anywhere but off the swim platform as we have discussed before. Magma makes some great swivel style and fixed rail mounts but as you will see from the poor picture of the back of our boat. (note: this was the sale picture and we will hardly use the camper enclosure until late fall) my rails don't fall where HavaMax's do they are lower and the mounts won't grip them. The bow rails are just not strong enough to support the weight during movement and I don't want to stow and move a greasy grill everytime we want to buzz across the lake.
So if you look to the left of my entry door, the back of the boat has a long flat railing (fiber not metal) that is a level part along the entire back of the boat. I plan on using Magma's flush mounts with the plastic stoppers.
This will allow me to set up the grill facing either way (towards the platform or towards the inside of the boat) and because of the slant of the back of the boat it won't take up any seating or any room on the platform. You won't want to sit in that corner while it's on but when it's not hot is shouldn't get in the way. It also gives me a couple options for down time. Our cover will actually fit and bungee under the mounts making it so we can leave the grill on the boat but more importantly this design requires about 5 seconds to remove the entire grill and it can be stowed in my locked dock box during down times so it's not there for the taking. Also give me the opportuntiy in the colder times to remove it and put the camper cover on but also be able to pop just the back corner of the enclosure to be able to use it. The other crucial thing with this location is my bumper storage on the back of the boat gives me access to the underside of that rail so I can put locking nuts on the brackets.
The big downside is the drilling two 1 1/8 inch holes in my boat. While I worry about that the mounts are great looking polished stainless and have the black stoppers that allow it to look very professional plus they fit flag holders and other toys if we would want to use it that way.
The grill, mounts, and covers are all rated for heavy duty use and should be really stable back there for moving in the water.
I will be getting the items late this week and hope to start construction this weekend. I'll update with some pictures of the process and final product. You have 48 hours to convince me I'm crazy..............GO!!