holy cow, weird lol. I dont envy you! With that tank There's not a whole lot you can do unless you dont mind lights hanging off the edge by a couple inches. Like i said above, you'd be better off going with a halide with that type of tank (tall and not long enough for t5's). You can use that t5 setup, but dont expect much to grow, specially at the bottom, other than shrooms. You could do xenia and gsp and whatnot up higher, but they probably wont do as well towards the bottom,.
I wouldnt even consider pc's on a tank that deep and i wouldnt use that t5 setup unless each bulb has an individual reflector. That being said, its gonna be 24 inches so you're gonna get about an inch extra on each end.