Wouldn't it cost less to buy a single pendant like a Lumenarc? They are about $160, plus your choice of ballast and bulb. If you don't want to keep SPS, then you likely don't need the big guns, but the single Lumenarc reflector should do a good job covering that tank.
If you're stuck on getting two, then go for PFO mini HQI pendants.
they are $120 each, plus ballast (you can get a dual ballast), plus bulbs.
I think the Lumenarc would be your cheapest route. Think of all the T5 bulbs you'll have to buy!