Had a look and what is near to what I would consider spending (IN EUROS and not in Pounds) for a big RIB is the 11mtrs cabin thing built in 1996. However, I will never spent that short of money for a near 10year old RIB whatever the make, builder or looks.
Have to say though that one with the cabin looks very nice, the rest look ordinary on deck and in particular that 15mtr is a joke with seat for just 3
and an asking price of GBP 120,000 for a 2001 built boat!!! will anyone ever buy it I wonder.