Need some Advice

I've always grown outside and it's worked pretty good but im looking to get a little larger operation so I'm moving indoors.

I do construction so I have collected some Ballasts 250wat and some mylar ect.

I was wondering can someone point me towards a solid list of what exactly is going to be needed and give me a ballpark idea.
I'm just looking to get a effective set-up so i can grow some more advanced and better quality bud for myself.
Not looking for a big commerical type operation , Small but effective maybe... 4plants total.

As for my grow room , i have a cloest roughly 12 feet long and 8-9 feet high. 3 feet wide. I also own my home so I can do as I wish as far as adding or removing holes. As far as Strains go I'm going to go ahead and order some NL or Panama Red ( brings back memories lol )
So I would like some advice and so on ( Also have a MH bulb I got from a job we did )

Thanks for your time , and hopefully some help.

Only 3 feet wide? That's going to be kinda tight when doing maintenance, IMO. Are you thinking soil or going hydro? Anyways, LIGHT, AIR, WATER. Start by figuring out how where to wire you ballasts/hood placement, and where to expel hot air/ bring fresh air in. Tap water is fine, but you should consider getting a pH test kit and a cheap TDS meter. Can you provide any pics of the space?

Well the closest is a classic double sliding door Im sure everyone has seen them befor. Thats why its so much and rather narrow but maitence wont be hard sense it has a 10 foor door span I can slide them off hinges if needed.
As far as Wiring goes , I was going to run a cord through the top of the door And hang the ballasts.
Air , I can make a hole in the side of the house and use a few computer fans? have a few laying around.... As of bring fresh air in Im really not to sure about that one... I could make another hole towards the bottom of the ground and use a few fans?
like I said ive always done soil outdoors and pretty much left it alone so im pretty new to this.

Welcome to RIU to the both of you

3' wide is not to shabby at all. You'll have your hands full filling that 12' long space though

Like i've said , I'm not out to profit just a little grow area for myself. I'll be happy with 5 at a time , it'll last me until the next harvest is ready i think.

Anyways , Thanks for the welcome. Think 2 Ballasts is enough to start with? I mean whats a list of everything I'm going to need for this project and a ballpark estimate of the price here. I can build just about anything I'll need as far as structures go.