Building the Couchbike! Answered

I am just starting an AMAZING project!  I am building the Couchbike.   Take a look at the original:  http://www.bikeforest.com/cb/index.php
I am wanting any advice or experience or ideas about building strange bikes.  This is kind of like building a recumbent trike, so anyone who has experience with that particular thing please chime in.  It would be great to find someone to collaborate with.  I live in Portland, OR.  Don't worrry: I will definatly make a how to on this one!!