Homemade Rack System

I Picked up this piece of furnature for 12 dollars at a garage sale. Bought some wood to ad levels. Right now it has 3 functioning levels with heat tape on them. The rest of the levels right now are for storage of equipment. But the rate I am buying BP's they will be filled up in no time. Right now I have 7 (1.1 2004 Pastels, 0.1 Halloween or what ever its called, 0.2 2002 Females, 1.0 2004 Mojave Sibling, 0.0.1 Rescued BP> It works great and I am looking to get another piece of furniture like it for rack number two. Still have 3 slots to fill in this one.