I am looking for a pma to power my windmill project. My blades are 10.6ft dia 3 blade and I am looking to overdrive with lightweight chain and sprocket sets. TSR for my blades is ideal for 300 to 400 rpm. My avg wind speed over the last year is 12 mph. I believe i can consistently turn a pma around 600 rpm if 2to1 overdrive and 900 if 3to1. I am hoping to make 1 to 1.4kw. Is this a good fit for the windtura 750? Will it hold up?