Forward, with its own access from the deck, is another stateroom with V-berths. To get to the head at night, people using this forward stateroom will have to go on deck and access the head through the main companionway or walk through the center stateroom. You could always add another head tucked between the notch of the V-berths. This is a conservative and very traditional sloop rig. There is a Solent stay forward to allow the setting of a reasonably proportioned staysail for heavy air.
Most staysails are too small and have too narrow a head angle to be of much use.
No, you cannot fly your genoa and your staysail at the same time. The inner stay is removable. There are two sets of spreaders and fore and aft lowers. To my eye the rig looks short, but that is certainly in keeping with the hull form and the inside steering station. The truth is that most cruisers neither want nor can handle tall, flexible rigs.