It looks like an Avon to me, the tube design looks like it's about 12 yeas old. The console is definitely after market. Avon stamp the ID numbers on to the metal lip of the transom ( i don't know if they did it then, and the Id number has the year code in it.
The hull could be painted, or I think at one time Rescue/safety vessels for the rigs were colured blue and yellow which might explain it.
How much is it and what's the motor
I need a little bit of Rhythym and a little bit of Blues