There's only one way to grow 10 plants under a 430 hps. SOG, sea of green, look it up.
Your dimensions could be 2'w x 2.5'L x 2.5'h for all 10 plants, keep the plants small. The space that houses that grow area must be at least 2.5'w x 4'L x 4.5'h.
Soiless mix is fine but get 10 individual 6" pots (like 80 cents per) from the 'dro store, you'll probably want to shuffle the plants at some point.
For cooling you'll need 160 cfm at a miniumum, 250+ recommended. Cool tubes and inline fans are great, a really good investment. Inline fans are much better at pushing and pulling air through ductwork, and are good with cool tubes.
Cost (for two pieces cool tube and 250-440 cfm inline fan) $250 + ducting.
If you're cheap you can just buy a 250cfm squirrel cage fan, but they don't do as good a job at cooling. You're light will be farther away in order not to burn the plants, about 5-9" higher. Cost $120 + ducting.
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