DIY T5

[Slick Fork]

You could buy as many of those as will fit, the JL site says they can be daisy chained together. To keep any kind of Coral though you would need 4+ of those plus individual reflectors for each so you'd be looking at $120ish for the lights, $120ish for reflectors and you'd probably want to change the colour of some of the bulbs so say another $40 if you replace half the bulbs right off the bat.

With an AIO heat will also become an issue which is another advantage LED's have over both T5's and MH's.

Ultimately I think you will find LED's more cost-effective but it also depends on your goals with this tank.