Actually, you can have more than 2+2 in a family b/r, albeit uncomfortably. The service standards manuals have the numbers for both berth and daytime usage only formats. 6 is the max for berth, so yes they would need a minimum of 2 spaces, but the family room + a lower roomette could work depending on their sizes and comfort levels.
I'm on the website... if we are talking about the same thing, they are making me purchase 4 roomettes... which comes over 2K.
The viewliner bedroom states that it can only hold three. For some reason, its still wants me to buy 4. But even if I only got 2 and sat out by myself, it would still eclipse the money spent, coming to around $1700. I might have to call to verify some things.
Thanks.