Animal plastics over DIY... hands down.

I bought a 4'x8' sheet of pvc and I built a rack out of it. Yes, it is easy and great to work with. I also ordered a T8. The quality from AP is amazing. I really think by the time you get the sheet of pvc, buy the right sized track for your doors, and then get the glass doors to fit it, you're going to be close to what you'd pay for a T8. Not to mention the fact that if you call them and tell them you'd like an extra hole here, or a groove cut there, they'll do it for you.