I'm finally getting around to building a stand for my 10 gallon system. The plan is to have a single-level system and use pumps for all liquid transfers. I have a pump and the 3 vessels and now I need a stand.
I decided to use Unistrut type struts for the stand because it's pretty strong stuff and it can be bolted together, which makes it easy to modify in the future. The fact that I don't have a welder or any welding experience also had something to do with that decision.
Here are a couple pictures of the current progress. The top is assembled (pictured), and the parts for the bottom are cut but not assembled.