well i got my first rack built
i used Matts (blueapplepaste) DYI to go by.
tweaked it a bit by using plywood instead of the expanded PVC and adding center support just to give me peace of mind that the excape artist dont get out (also made it for 5 not 7)

any ways heres a picture of the finished rack



final cost (not including flexwatt, T-stat, or totes)
$75.00

**mental note to self**
next time paint first then put together