I don't have any charts or a personal page but I can report on what we've been doing.
How much light does that rope light put out? I had thought of hanging commercial grade christmas lights in the storage area of the chicken yard but hadn't thought about a rope light for inside the coop. THANKS.
We have a larger area (1 separate coop and 4 inter-connected coops) and @80 chickens. We have been zone 4 in the past but we do seem to be warming up and have been moved to zone 4.5/5 on planting charts. The coops' walls are built from a mixture of wood, cinderblock and plastic over wire as we've added on to increase space. Each of the 4 coops have a plain light.
I'm not a fan of heat lamps. We had some older baby chicks shatter one last year. We managed to gather up most of the shards, however it was stressful wondering what had been eaten. Dh has decided he doesn't like regular light bulbs in the coops and prefers heavy duty. All of the heavy duty work lights I've seen here are 75 watts. I don't want that much power going to the coops.
As for extending daylight, we had it set for 14 hours but I think it gives the chickens too much time confined to their coops. I've noticed some blood on the feeders suggesting some rough-housing, but I can't figure out which chicken was injured - they all look fine. Dh says he put in the lights we had on hand which are 75 watt regulars, but he'll replace them with 45 florescents.
Since each door is human-sized, we hang quilts in the winter over the opening. That enables the chickens (and me) to easily move in and out but keeps out much of the cold.
I've been working for over a month to get chickens moved into the main coop structure (the four) and then I'll work on getting the 4 areas down to three so their body heat can help. I have @10 more chickens left in the separate coop (roosters and a few silkies).
We don't make the coops airtight but try to find and cover any draft-causing openings. The most airtight coop has a tendency to smell 'urine-y' which isn't good. Rule of thumb for a rabbitry is if you can smell urine, there are enough fumes to damage lungs - I figure this is true with chickens as well. So, I try to encourage air flow but to move it (and fumes) up and out rather than around the hens.