http://www.iversonsdesign.com/index.html
I don't know how helpful this might be, but I have met the designer and he seems as thoughtful in person as the web site seems to suggest.
If I were in the Seattle area I might save up my dollars and have him design and build one for me.
There are a number of hi-rez photos on his site, and maybe some of those ideas might give you some inspiration...
Plan B would be to make a mold and produce my own hard dodger. A couple of talented DIY-ers at our club have done this.
Keep us posted, and remember that we want pictures of whatever you put on that Ericson!
Cheers,
Loren
ps: you might want to ask Phil about how much "shelter" is enough, as he has sailed his 35-2 to Hawaii and back.