Thanks! As for the weight issue, so far so good. The the wind, well time will tell. Wont be the first time I chase down the street after a prop or need a re-build mid season. But that's how you learn.
Yeah, I generally over-engineer while over thinking everything and either don't finish or make something that weighs 1000 pounds.
Did you work out the gears yourself, or use something like this template generator: http://woodgears.ca/gear_cutting/template.html
I am going to probably try to make some this year and it will be my first attempt.