More room is great. Especially with a family. It is really that much more room?
BUT, If you're not happy with it

.
That's what open bows are for.
But is this new hull the one you want to put any amount of time and money into?
It might be a great hull. BUT, what if it's a "can of worms" ? You know about that, right?

Good luck.
By the way, I like the classic look of the Kona.