It would probably be cheaper to build it yourself, buying the housing, reflector, ballasts, bulbs, sockets, etc. all seperately. I'd estimate it'll cost around $700-900. Coralife does make a fixture called the Aqualight with 3x150 watt DE MH + 4x96 watt PC, but the SPS wouldn't grow as fast under the 150s. Also, it's a foot longer than your tank.