In terms of price, a friend and fellow member on this board purchased the same boat you are describing, minus the barefoot boom ($300) for $25k 2 years ago, with a few less hours. So, I think the price is a little high but given it is at a dealership they likely have it marked up a couple grand so there is probably some wiggle room.
As for the size of the boat, if you did not have the pontoon boat I would say it is too small for your needs and depending on how much you will use the MC and whether or not you want to take both boats out at the same time, it still may be too small. As your family grows and starts bringing friends out, the boat will be cramped and a 209 or 214 would better serve your needs then.
Hope this helps.