welcome to rollitup bud. The size of the bin doesnt really matter- its your plant. Get at least a 400w HPS for good results. Do it in your closet, get a shed to put it in, or do it in the attic if nobody looks there. I dunno if you can smell the plant very much once it buds. everyone says it is a strong scent. I think i just got use to it tho. keep a fan blowing on it pointing outside the window (i guess) but you can get some shit that constantly spreads a sweet scent all over.