Why don't you just grows less plants in bigger pots and train them? You will yield the same and save money on seeds and nutrients. Whenever I grow in 1 or 2 gallons I get smaller faster finishing plants. Have you ever concidered making your own fabric pots? I did it for a time when I was limited with my space. I made my own 2 gallon fabric pots from rolls of polypropylene that were alot taller than wide and it saved me alot of floor space while giving me bigger yielding plants.https://www.autoflower.net/forums/threads/low_and_slow-coco-micro-grow-16oz-container-comp-entry.24724/
Pics on page 4, I pulled over an ounce dry each from a Dinafem Haze 2.0 auto and a Magic Dragon. You could run 10 of those in a tiny space with the right lighting. Anymore than a 1g fabric bag of coco easily overgrows my little space.