So I have a V-180 for when my Bloods/SD Retics are adults. I ned to figure out which rack system to buy from reptilebasics for Juvenile and sub adult. Which system, the CB-70 or the VE-6 would be the best one to buy to house my pythons until they are large enough to go into the V180? I appreciate all advice. My price limit is about $350 if anyone has a different rack I should get.