biocube lighting

[i have crabs]

ive decided to turn my biocube 29 into a sps tank,if i can get it to work, im thinking of trying to install a 150w hqi bulb right in the middle and possibly keep 1 of the 36w pc bulbs, can anyone tell me if a 150w halide is gonna be strong enough for most sps and mabey a small clam?.
1 major issue is gonna be the heat, if the hood acually dosent melt the water is gonna be a problem, i think i can increase the airflow quite a bit with just some minor mods but i dont really want to hook up a chiller unless it turns out to be absolutly nessasary.
the other option im thinking about is to gut a 14" solaris and try to mount the 12" led section inside the hood but im worried about how much less heat it will output and if ill be able to get it to work and for around $900 it could be a big mistake.
also does anyone think running a sps tank without a skimmer is a bad idea or will it be ok since ill have a small bio load?