I was in the same situation so I made my own with xPVC. I'm not a DIYer but it turned out great. I'll post my build in the DIY thread when I get the pictures organized. I wanted something that would hold the V-18 and V-35s containers since they're the same height. The rack I built has 9 levels and can hold two V-18s or one V-35s per level. As Deborah pointed out, the V-35s is limited in size and shouldn't be used for large females. I have a 950g male in a V-35s and he fits perfectly. I wanted a rack for upcoming hatchlings (hopefully) but didn't want to spend 500+. With the xPVC, tubs, heat tape, and screws I spent around $250.
Matt