That dude named 76GMC1500 has one. It is pretty sweet. The cabin has more head room than the V.
Here is a pic I dug up.
And here is the whole thread. Some pretty neat pix in the old thread too. Some of MJ's old V before the new owner murdered it. :-/
http://www.wellcraftv20.com/cgi-bin/...34;start=22#22