This is a homemade boom and pan that I made. Both work fairly well. The boom has a 5 1/2 foot arm and can reach from ground level to 9 feet high. They are pretty easy to transport as well. The pan tray need skateboard wheels and a track (PVC works well). Selling package for $100.
http://https://www.newschoolers.com/web/content/pictures/id/214977/cat/90/
http://https://www.newschoolers.com/web/content/pictures/id/214978/cat/90/
http://https://www.newschoolers.com/web/content/pictures/id/214979/cat/90/
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