48' x 48' Tent 1000w HPS AIR-COOLED or Not?

Hello!

Do you believe it will get too hot ?

I have a 440CFM Fan and a Scrubber. Can i use the same fan to extract the air from the light and scrub?

Thanks, friend!

Yep

Is the ballast dimmable? 1000w may/will be overkill. What are your ambient temps? Are you venting to outside your room? Is it 8 inch vent?

Yes you can use same fan..
filter --- hood--- vortex fan--- out of tent-- out of room.

start with filter on one end then run through hood then to fan. Fan pulls air through filter and hood and then pushes out of tent. If you need to tape any of the parts use the foil tape. This tape lasts longer under high heat conditions.