Not gonna defect to a RIB are you?
Charles advertised "Scorpio" for sale before he decided to change engines i beleive. The ad is here: http://www.rib.net/forum/showthread.php?t=3267
I think this is one of the best RIBs i have seen and heard (yes i do mean heard) and i personally prefer it to the 9.5 / 10m (diesel) cabin Scorpions. I am, however, several ten's of thousands short right now, and i must say at the price Brian has dropped his 9.5 / 300 Yanmar to any person seriously looking into a RIB of this genre and price would need to be sensiable and consider Cyanide.
<edit> Cynaide ad here: http://www.rib.net/forum/showthread.php?t=2434
and although slower (considerably i imagine) is newer and longer aswell as being a nice economical diesel. </edit>