It may be difficult to find an air cooled hood that fits in a 2x2.. By the time you leave room for the venting it takes up a lot of space... Maybe a cool tube with 90 degree elbows on both sides would fit...
I'd probably do a nice circle of 42w CFL's around her.. This way you can get light nice and close to lower buds. If you had trained her I'd say go with a 250 or even a 400. If you live in a nice sunny place and can get away with it put her outside during the day.. My friend is doing this and his plant is massive. I can't believe the growth.