No Hassle youll need timers .Try flowering for 8 plus weeks doing it by hand,,talk about stress.eg (this day it goes on an hour late because youve a hangover. Tommorow it goes off two hours late because you went for a pint). Please use timers be carful big lamps blow timers unless you use a contactor. ive also had that happen. demestic timers arnt ment for grow lamps. I m growing in an attic at the minute myself one wall the end of the house two walls are mylar the actual walled end is paint'd matt white so ive only one acess point if you will. Vent into the house, if its your house open the attic door who cares if there's a smell. This will come down to it being ur space. You could vent threw the chimney aldo this will require some work knocking out bricks ,if this sounds like work too you keep in mind what i said get a couple of rh meters and thermo's see what youre temps are beforwe you start. try and run you room when youve the lights in run for a day with a plant see for sure how hot it gets and how humid..

Peace D