Right now we are debating if we want to make a rectangular TT layout, or this odd-shaped modular layout:
The room that we have to spare for the modular layout is odd shaped, so we are considering trying to make the most of the available room until we can put together a decent outbuilding to setup the completed modular assembly.
Otherwise, we would be limited to a 9' x 9' layout square with a 5' x 5' "people tank".