Sliding Door Tracks?

I'm going to be building my GTP a new enclosure pretty soon and I can't find anything that will work as a track for the sliding doors. I'm planning on getting it all built, installing the tracks, and then just having Lowe's cut some plexiglass to fit.

Any ideas?

You should be able to find the tracks at HD or Lowes

I got some at a glass supplier I never found any at a hardware store at least in my area.

I just happen to run across this site earlier that has them: http://www.coldbloodedsupply.com/pro...%22-Glass.html

Just what I needed, plus the vents I was looking for too. Thanks!