If you're in the area it's always worth dropping by the Factory to ask what they know of that may be coming up...to get ahead of the game
How I bought my 80 hrs "545"...and a couple other RIBs... I learnt about and passed on to others.
A phone call to Charlie may be worth a call....but in my experience an in-person visit is always best
Plenty of owners who up-grade or go new,often only put thier present Boats on the open market/up for sale ..just before .....or after delivery