Pleasureway has posted details of their 2008 Sprinter-based(*) models (Plateau and Ascent) to their website http://www.pleasureway.com
(Possible error in first line of specs for Plateau: "length" is given as 21' 11".? In the body, exterior length is given as 24' 1" "including external tire carrier".
(*) 2008 model based on 2007 model Sprinter, I think.
(Sorry, I don't know if information posted for Ford and Chevy-based models are also for 2008.)