Thank you both for the suggestions. I will do deeper research, but my two concerns are easy of installation (The compartment has an untouched surface that is staring at me! And, the sloped nature seems to make the installation needlessly difficult) and cost. I am cost-concuss, but in this area, a good solution is worth extra expense. However, spending extra to get something that is overkill, is not necessary either. I will attempt to get the best unit for this application.
I did check them out and the C-Head says they make one for the

. Very appealing.
The Air Head seems way to large for the compartment. I can't see any other way to install it other than cutting into that slope. Chinook, did I read into your post that you did not cut into the slope? Did I miss something? The website also does not list the cost. My father used to say that if you have to ask, you can't afford it..... I am willing to spend what it takes to get a solution that my wife and daughters approve of.

Also, My wife does like a door, so I would rather not have to remove it....
RGF, The Dry Flush does seem like a really good option. Do you recall the cost and how is the installation? Did you do it?
Thanks again for the help! Making my three gals comfortable will mean more time on the boat!