yeah in terms of weight, it's definitely overkill. In my mind, what I'm gaining by using metal - square pipe - is the ability to adjust the height and position over the tank. Not to mention a clean look. What I'm thinking is there'll be some 1" ID sqaure pipe attached to the stand, then the bracket, which would be 1" OD that would slide into piece attached to the stand. That will give me the vertical adjustment. Then same thing for the canopy which gives me the horizontal adjustment.
If I use wood to make this bracket, I lose the ability to adjust the canopy position - unless I'm not seeing all the possibilities ?