We've searched for years for that perfect 5.5m ish, good all rounder rib and the best we could find sub 10k was a 5.45m the same as the Ribcraft 545 dive.
It was made in the same factory as the Seariders so the deck is the same as a searider and it has the outhill consoles.
Me and Nos took it from Bristol to Cardiff last year and I also did round Isle of Wight last year too. It's nice and wide for the length so it has side by side jockey seats and a rear bench seat which the back rest swings over so you can sit and fish off the transom facing the right way.
It's perfect for a family of four for day trips and more than enough room for fishing and spending time at anchor even with 4 people on board.
We like it so much that we decided to rebuild the whole boat, so at the moment she's being put back together this week.
She has a 75hp four stroke outboard that pushes her along at 30 knots even 4 up, the engine sips fuel in comparison to any other 5.5m set up we've had.
She has a white hull and blue tubes which is a bonus too.
Even though we said we would never sell it, a RC585 might be coming our way soon so you never know...
As for twins, unless you really need them, I would go for a single with an aux. the 545 has loads of room on the transom, which isn't always the case.
The other thing we did was buy a rollercoaster 3.5 trailer so we can launch it without getting the car tyres wet
The biggest trouble you have is finding the right boat for you, in the format/colour/engine size you want for sale in the right condition at the right time which can be very frustrating.
But speak to Maximus, Hadd or I think Pikey Dave? as they have all owned the RC545.
I'll post up if mine becomes for sale in the next couple of weeks if this other boat works out.