Got some more time to work on this project...was delayed a bit with a summer head cold and then caring for an egg bound chicken (poor girl didn't make it - ultimately infection killed her I think).
Practicality and my frugal side won out, and I went with painting the top green since I had more than enough paint to do so, instead of buying a quart of white. I like it well enough.
I plan to add a slide lock or something to the top doors (which someone manufactured themselves at one point and put on themselves) as one door won't close flush, which will create moisture problems in the coop during our 9 months of rain here in Oregon.
I also got the frame built and installed for where my automatic chicken entry door will go. I decided to go with recessed to make it more weather proof if we get sideways rain. Tar paper, exterior caulk, and some shingles from our leftover project pile came in handy here. The actual auto door will be installed when I'm ready for the chickens to move in as it is being used on their current coop.
I still might paint the wood on the inside for ease of keeping clean.
I've been replacing a few of the old hardware pieces that were beyond useable as well. Some of the old hardware/latches I just kept, as they still function fine.