Wow! I certainly won't waste my money on that thing! I did build a bee-vac last year using a langstroth hive body and a shop vac. It is heavy and very awkward, but it does work. I have two cutouts coming up that are three stories up in the soffets and I will be using a lift truck. No room for my bee vac, so I will just make do. Might be able to put it on the roof. Thanks for the links!