How about this frame?

[kevyleven007]

I was thinking about getting a recumbent so I can ride laying down and I saw this. http://www.ebay.com/itm/Performer-R...11d8d09&pid=100005&rk=4&rkt=6&sd=181775689658

 

[wheelbender6]

The seat struts look adjustable, so you could recline like a street luge racer. Aluminum frame, too.

 

[Trey]

Daaaaaang that's a lot of money. Just sayin.

Actually looks like the stretch cruisers that you can buy... maybe look into modifying one of those to meet your needs?