I'm still trying to figure that out. Some of my other ideas always have been the big surface area, and that is one of the things that breaks my concentration building. I have proposed some dogbones and have had some success with those. So, that more or less would be what I would like to do.
The current design I was working on after posting this I fell into the big surface area without even realizing it. I know that may sound strange, but I had laid out(in the design program) a small panel the length of one distance but width was small. The second surface I put in was raised and that's when my brain got stuck(because I saw a large surface area once again).
I think one of the key things I need to do is start at the bottom layer and work from there. That and stop thinking giant oval.