Enthusiast: 4h for the coolest component C, 1h for unnecessary but fun stuff. The rest of components: A, B & D glued from duct tape in 1h. Quality of C: excell

Enthusiast: 4h for the coolest component C, 1h for unnecessary but fun stuff. The rest of components: A, B & D glued from duct tape in 1h. Quality of C: excellent, quality of the final product: nice demo, but falls apart when exposed to wind. Professional: 2h for C, 1h for A,B,D each. 1h for testing. Quality of A,B,C and D: good enough. Quality of the final product: gets the job done, withstands winds up to the speeds required in the specs, plus some margin.