HEy Paul,
I brain tan deer hides all the time, and I live north of Atlanta near the town of Woodstock.
What you need to do is find an Ace HArdware, and buy pure lye crystals (it's basically a drain opener). Lye has become more difficult to find because it's a key ingredient used in the manufacture of meth, but they still carry it at the Ace HArdware near me. Anyway, get the lye and mix 3 cap fulls of lye in a 5 gallon bucket of water (filled with about 4 gals of water). Stir the water well to make sure the crystals have fully dissolved. Test it by putting your fingers in the water (it should feel kinda slippery when you rub those fingers together).
Now, soak the skin in that lye solution for about 2 days, but keep it in the shade. (You may have to put a rock on top the skin to keep it down because the hollow hair is buoyant and will cause the skin to float, which you don't want). You can also stir the skin every few hours to make sure the lye gets to all parts of the skin.
After 2 days, pull the skin out of the solution, drape it over a smooth, rounded beam with the hair side up, and take a fleshing bar (or any metal tool with a 90-degree edge) and begin scraping the hair and epidermis off the skin. You don't want something with a razor edge...that will just slice the skin to pieces. The skin will appear kinda yellowish and will feel kinda rubbery. You'll be amazed at how easily the hair and epidermis (sometimes called scarfskin) will come off. Scrape the hair and all the epidermis off the entire hide...this may take 2 or 3 hours since your a beginner.
The lye doesn't allow bacteria to grow, and although the skin will probably smell kinda funky, it won't smell like roadkill. Be aware that I very commonly have some small whitish spots on my skin that the lye doesn't get to and that will smell kinda rank, but just put your noseplugs in and get that thing scraped. Be careful around thinner areas like the belly...that skin is very tender and you don't want to scrape too hard or you'll tear the skin in those areas. Send me a Personal Message when you get that far, or if you have any questions and I'll answer them for you!