Advice on AI SOL?

[tony_3a]

Hey guys, soon I have to replace the bulbs in my 6 bulb tek light so I am contemplating going to the AI Sol but I have a couple of questions.

1. The tank they are going over is one of my old frag tanks that is 48x24x12 and is a mixed reef, would 2 be enough?

2. Assuming a very obvious question but I do like a less blue more white look so I am assuming going the sol white is the clear choice.

3. Is there any better options than this for under 1000?

4. What is the best place to buy them? Anywhere local, or good sites with free shipping?

Thanks in advance guys, I really appreciate the help.
Tony