No, not for hard corals. Its not about wpg, that is misleading. It is depth, light intensity and type. Doesnt matter how big the tank is, depth is what you're looking at there. For example you have the 39 watts over your tank, sure it comes out to a high wpg, but it isnt comparable to 400 total watts of halide over a 55 gallon with a similar wpg.
I would probably go for 2 10,000K and then one 50/50, maybe 2 if one wont kick out enough blue colour for your tastes. Simply because actinics are more for aesthetics and it would be best to get as much lighting power out of the unit you could.
You could do the low lights and several of the moderate light ones, I wouldnt put sps under there though. Monti digitata would be a possibility, but it probably wont do so well.