Grow room help.

Ok i think i've not got enough for what i want to do.. i'd been given some room at the end of a shipping container to do a little grow. i was given about a space of about 7' 4" x 3'. i bought a 6" inline fan that does 306 cfm and a 1000w hps light. I was then told by my friend i could have a bit more room. So now i have 7' 4" x 7' 3". The ceiling is about 8' tall. I plan to have 25 plants in a soil grow in 5 gallon buckets. Is this too many? Can i do more??? Also what do i do about aditional lighting and extraction?? Also do i need to put a fan on my clean air intake?

I think your pushing it a bit trying to put that many plants in the foot print unless your planning on using the scrog or sog method where you have short plants. The light should cover that foot print, but penetrating a canopy that thick might be more then it can manage if you grow them 5-6+ feet.

split the room in half buy a mover use your 1000 w and veg and keep babes in the other half or
but a mover and 4 t-5 the 4 footers and place where needed that should give you the light check some of my posts i got 21 5 gal in a 4x8

i'd consider scrog or sog if you plan on trying to fit that many plants in that size room... And like some one else mentioned, it will be tough for the light to penetrate a thick canopy, so you might want to cut plants out and just veg a week or two longer... Sounds like a fun grow, except the soil part...

I don't have a problem buying another light. I figured i'd get another 1000w light and put them both on tracks. Would this do?? Also do i need another extraction fan?? I made a mistake before i one i have does 450 cfm.