South Georgia here.
Consider an open-air coop -- a big wire box with a 3-sided shelter on the end toward your prevailing winds.
For those of us in the Steamy Southeast summer is the dangerous time rather than winter.

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South Georgia here.
South Georgia here.
I’m in the historic district here in Tifton. The guy said he could possibly make some modifications. Ok so I need a solid floor, a vented roof (possibly an open coop), and an access door that I can reach everything. I’m also thinking it could afford to not be so high off the ground. Oh yea and need about 3-4 boxes for 6-8 hens?
First welcome to BYC I'm not sure if I can help but mine is made from pallets but a word of advice don't go by the rating on the prefab houses they are never big enough and an FYI chicken math is real I started with 12chickens I now have 84 so becareful when getting them so they have enough room to moveI’m brand new to the chicken world. I actually don’t have any yet nor do I have a coop. But my wife and I want to start with about 4-6 chickens. What the best coop you can buy as a starter, that’s inexpensive? Say <$600?
Poop boards are really great too because usually the only time they spend in the coop is when they retire or lay eggs. They poop when they are sleeping and roosting and if you have a poop board underneath it is really easy to clean up the next day, it only takes may be a minute at the most.I’m in the historic district here in Tifton. The guy said he could possibly make some modifications. Ok so I need a solid floor, a vented roof (possibly an open coop), and an access door that I can reach everything. I’m also thinking it could afford to not be so high off the ground. Oh yea and need about 3-4 boxes for 6-8 hens?
I prefer a coop that you can walk into also. I think it makes managing everything much easier.You want everything to be easy for you and not a hassleSo much good info already... My bit is that I would never build a coop that I couldn't walk into. I can get to every inch of my coop for cleaning.
I think @3KillerBs had a great idea of an open air coop, with a three sided shelter at one end. I'd put a roof over the whole thing to keep out the rain. The open air design will solve your ventilation problems. Heat and ventilation will be your biggest hurdles in your GA climate.
I have an open coop but I have inserts for winter im in Northern Ohio my chickens love it my bunnies live with my chickens and they like it open in the summer tooIt has been known to get in the low 30s too. An open 3sided coop seems a little harsh, I thought