You know I love LEDs, but I really can't get excited about the led light bars, UFOs etc. The Haight solid state I have not seen in person, but from the wild claims made on thier site, I'd take a pass on that too.
I have found only 2 off the shelf LED mfg that have not over claimed, Procyon 100 and the TI Pro-bloom and the TI Smart bars.
You have tho a small space of rectangular dimensions (2x5) that creates a problem obtaining a good light "footprint". Plus that's a 10 sqft area you're trying to light. An 8 bulb T5 fixture would give you the light coverage and abt 4,000 lumens/sqft, but they don't run that cool either. The TI Pro-Bloom is very good for abt a 3'x3' area (9 sqft) but you would need to use a light rail in your situation.
You got some more thinking to do before spending money, IMHO.
Keep it civil please, gentlemen. -StinkyAttic