Seahawk nice work on the old barn and I'm with you on minimal maintenance on the exterior . I will either go with vinyl siding or vertical metal panels for the exterior . I do not want to be painting when I'm 80 years old !
I will be going with overhead doors just not sure panel style or roll up style . With the pole barn construction there will be more framing involved for the panel style for the overhead rails . Plus the intrusion of the rails . I am leaning towards insulated roll up/coil style but I have a long time to think that over
as I am far from being ready .