Our winch idea (already made now

) is
here. Although, it is a bit overkill, since by my calculations, it can lift about 600 lbs... However, it can do it in about 3-4 seconds to get above the platform, and 10 to get to 7 ft. What you see in the model is a 12--->24, then a 1----->60 reduction. All in all, it is a 120---->1 ratio.