Sure wish I had your problem! What a cool challenge.
As to lighting, if he wants a reef;
Plasma would work but $$$
A 6-8 1000 watt MH
's will be a good start but a big chiller is going to be needed.
Multi segmented high power LED
's with proper lenses would also do the trick. I would use at least 4000-5000 watts in LEDs with at least 90deg lenses for a reef. They are 100 watts per LED
chip. See my thread on DIY LED
on moving track. Would still use a chiller, but a smaller one. The yellow spectrum in his LED
solution will probably turn this tank into a algae farm.
You are going to need to build multiple rock levels, maybe to within inches of the surface for SPS
that needs maximum light. Ignore my recommendations if this is fish only.
I would go for schools of fish. They are far more impressive and interesting IMO
than a few trophy fish (which you could have as well!).
That is a dream tank to me!
PS: if he is going reef, he needs more equipment and a huge check book.