Please critique my tower plan for a Wintura750 in a not so windy area but sometimes gusts can hit 50mph. Total hieght 24ft. 2 lengths of 10ft Sch40, and a 4ft top piece of sch80 to mount it. 3 Steel 1/8" guy wires attached to the top coupler 20ft up and 4ft down from the turbine. Is this strong enough or should I add guy wires at the 10ft coupler also? 1/8" wire strong enough? Thanks.