Tuff situation its been done though, Either LST or flower at like 2 inches or from the start because the lights take up about 4 inches and pots take up space. plant with about 3 inches of soil not filled in the pot and fill up around your plants as they grow up.
It can be done just I would suggest starting with 12/12 light and seeing where you strain finishes up then next grow you can maximize space by vegging a little.
Problem with LST is they still grow up quite a bit, youd have to tie down every branch and that would be a PIA. If you could get the lowryder strain I think that would work best for you.