I think your plan is great, considering your options. Hopefully the wardrooms are tight so it's not like you won't have plenty to do when you want to on the cheap.
I think you'll dig it, many of the guys on the boat were geo-batching and lived at Mayport's RV park, including the C.O..
Plus, that floor plan is phat. I didn't see "keg-a-rator" anywhere but there seems to be plenty of room.
What say you AW? A keg-a-rator for MB?