Might be a little late but I will chime in. I am around the same weight as the op. I wholeheartedly agree with @
cyccommute on the use of the DT Alpine III triple butted spokes. I currently run velocity deep V 36 whole rear with 32 hole front on my single. The hubs and spokes have over 12000 miles on them (rims have been replaced once due to a finish issue and once due to wearing thru the brake track) and I have never broken a spoke. On my tandem, running team weights up to 550lbs, I run the same DT alpine III with velocity aileron , 32h front and rear, currently about 1500 miles and never a broken spoke.