great ideas,, you got me thinking,, he has enough height in that tent to put in a plywood layer, and divide the tent into 2 partitions, put the plywood horazontal , so there is an upper and lower,, make the lower just a couple of feet,, put some T5 tubes in there, or some cfls for cheap, and have a mother, veg clone chamber below,, and a flower chamber up top, the flower chamber is always 12 12 flowering, and the clone chamber can be 18 6 or 24 constant light schedule,,, then your self supplying and always harvesting, with this method you dont need autos, and you can be perpetual
edit: your same exahust fan, still does the whole tent, and everyting is contained in the tent,, i have seen this done well inside furnature and wardrobes,, I am friends with a guy here in oregon who does this type of thing,, he harvests 2 plante every 2 weeks,,