I have contacted Paul about making basses and he says the is only doing hollowbody guitars.  I would like to get a copy of the dragon bass, but with alembic Pups to include effects loop and a through body neck.  Would this be a possibility?  Here are some links to the pics of the bass.  
 
 
http://www.jimstinnett.com/images/photos/other/phish1.jpg
http://www.phish.net/faq/images/mike1.jpg
http://www.phisharchive.com/articles/1996/bass2.jpg
http://www.phisharchive.com/articles/1996/bass1.jpg
http://www.phisharchive.com/articles/1996/bassc.jpg

Is it not possible to get a custom europa/rogue blend thats semi hollow?

If you've got the deep tummy and elbow carving on a normal Europa or Rogue body, then hollowing places are limited.  
 
To make hollow construction, the body requires a top and back laminate. We can do some more gentle contours, but if it's carved too deeply, the contour will punch through to the hollow area.

thanks mica...I'll email you for inquiry.