Wardrobe grow design

Saving up for my wardrobe grow, need to use a wardrobe because I have no where else to grow. Have never grown weed before so if you can see anyway to improve it please let me know. Going to use a 600w HPS with a digital ballast as the magnetic ones get too hot and are less power efficent, might try and get a ballast that supports MH aswell just for vegging, 2 10inch inline fans for intake and exhaust. The things i need to know are how much heat would a 600 hps let off in an area this small, are my fans too small, could i get away with smaller ones?

Sorry about the measurements I'm from Australia, here are the imperial measurements H 5.9f x W 4.6f x D 1.96f volume of 53.19 cubic feet.

I reckon you could get away with smaller ones, 10 inch may be a little overkill for 1 light, maybe try 6inch out and 5 inch in, should be ok, you could always attach a small fan to the light hood (I've done this before and this helps move the hot air from around the bulb)

I agree with TicKle 6 inch would do great.

thanks guys, now I can invest it better equipment. Thats a good idea tickle, have you guys had much experience with cool tubes?