Hokeydokes , ill be the first for comment . ive had most ,open , ctr console and mostly cuddy cabs with familly whilst Children were young and no regrets whatsoever as doing mostly offshore Fishing . Been far as Arlie , Cape Hillsborough towing tinny full of camping gear will two Famillies and had a ball and if you plan to enjoy your Boating / Fishing with the Familly and can afford it go for a cuddy cab in a size that suits the numbers and comfort.
I now have a 4.9 ctre console and it suits the purpose for Missus and i just nicely with a cost that doesnt empty the pockets to run as mostly fish inshore .
Toilet ?? yep twenty ltre white bucket with a swim noodle cut and trimmed to fit nicely to the rim making it comfy for the bottom , only probs you may have here is who wins the battle picking the noodle colour lol..
And offcourse a screen barrier for when one wants to go and an old bed sheet here can surfice .
Lots of things one can do to make it more comfy like how big an ice box depending on how much fishing versus camping is done , solar on the roof run a small fridge/freezer . storage for carrying cooking gear etc etc..