You really need a light above the door in the event someone comes to your door at night. Without that light, you really cannot see the face of the visitor. I think a barn light in the center of the gable would work.

I think for your purposes, you could probably get away with 1 light fixture by the door and 1 pole light. I would use a rectangular light like this one. We would love to help you, send us an email, we're here to help! All 100% USA made and affordable. Cheers!