I could use that idea. why not replace most of that 4" hose with 6" you will get far more airflow. it really improved my setup. I like your swing arm over my bungee cord.
Wow, Scott, that is well made, did you weld up some round stock. It looks like its from Crate & Barrel, very well done.
1/2" Rebar, bent in the vice and welded. The pivot point is some colors, bushings, and 1/2" bolts I had around the shop.