In your position I would just go with Coco maybe a little perlite in Big pots and grow them massive, if you have limitations on quantity you should go big. Coco is hydro with a softer learning curve. You water from above, throw up a net or scrog to spread them open and you can be up and running for relatively cheap. I would do 1 long table 9x3 with 3 600w bulbs...4 under each air cooled hood. quick and easy.