Go with the Jack shaft opener, I live in central New York and we have cold winters , I have 2 lift master 8500 and they work awesome, there quiet fast and there's nothing hanging in the middle of the ceiling. There easy to install too!
I built my 30x40 last year and I used trusses for two stalls and the third rafters, with a 7/12 pitch I ended up with around 19 1/2 ' to the peak and put a four post lift in with no issues with ceiling height.
Hi from central New York, I've lived here all my life. Just built a 30x40 garage last year and slowly finishing the inside and this looks like a great place to get suggestions!