my planned DR120 tent grow - need help/opinions :)

Yo people, would just like to get some opinions on my planned setup. First i'll list what I'm planning on using.

DR120 Grow tent
600W Lumatek ballast (dimmable) with MH/HPS
Super sun 2 (6 inch air cooled)
Ruck RKW 6" A1 (extraction)
(Need advice for another fan to cool hood)
Vents TT Fan 100mm (input)

So thats it, i already own the ruck rkw and plan on buying the rest. i want to use the top two holes in the tent to cool the light and then use the hole thats on the roof of tent for extraction, the vents fan for frsh air in but need help on a fan just to cool the light. dont want to get 1 and its a bit overkill lol
also any opinions and help on my setup would be great

BUMB BUMB anyone?

sounds like a good plan what u growing?

You have some options depending on how much money you want to spend. For example I have a DR150 with (3) 6" Max-Fans; 1 for intake, 1 for exhaust, and 1 to cool the light. This is not absolutely necessary because on the other end of the spectrum I have a DR150 with just (1) 6" Max-Fan which cools the light and exhausts the air in the tent. These setup couldn't be farther from each other in price and ease of use so it really depends on what you want to do.