I have always been one for putting shop windows up high to let light in but not let others to see in.
I would close up both doors & build one door 5' wide you should be able to get anything you want or need in or out through a 5' wide doorway. Make it so the door swings out for 2 reasons it's supposed to be harder to pry open & the door & items in the shop won't be competing for the same space.
"Forget the flat stuff slap something on the spinny thing and lets go, we're burning daylight" Bart Leetch
"If it ain't round you may be a knuckle dragger""Turners drag their nuckles too, they just do it at a higher RPM"Bart