When working on electronic projects, I find a "third hand" indispensable. Available from stores like Harbor Freight, usually for under $5.00, its not an expensive tool. Unfortunately, the base its mounted to, is virtually useless to support anything (including its own weight).
However, adding a $14.00 cast iron flange from Home depot, solves the problem.
Step 1: Cement It to a Heavy Base.
A standard 1 1/4" galvanized pipe flange is just the right size for a base. Anything round and heavy would work just as well. The "helping hands", is epoxy cemented to the top of the flange and left to cure. For even more stability, I added 4 small plastic "stick on" buttons for feet .
If desired, a quick spray of black paint will make the unit look like a more finished project.