Pelago
If you saw as many as 20 oil-fired barns I can't argue the point. It is very likely that they were post-1945 or had been upfitted for oil. Even in tobacco cropping and harvesting there are many ways to "skin a cat" and if during the wartime they had access to bulk oil there was a reason that should probably not be argued or addressed. We swapped work with as many as 12 other farms during all of WWII, some with 3 and 4 barns, none of which used oil or could get it in the volume needed. All of their barns, as with ours, had wood burning furnaces.
But in every case that I remember post war they eventually all knocked the head off their stone furnaces and closed in the foundation wall. By 1947 many abandoned their log barns in favor of oil-fired metal bulk curing barns. My uncle who stayed with the farm was one of those who went with a metal unit in 1949. I tore our log barns down in 1954. Others clad their wood fired log barns in board and batten or metal and the local oil dealer prospered.
Nevertheless within a 20 mile radius of my City Condo there still exist examples of wood fired barns, some restored but most abandoned and several showing evidence of closed in stone furnaces.
Anyway your model is superb and my past experience has no bearing on your research and experience.
please don't get me wrong, i looked at tobacco barns around Henderson nc, and around camp lejeune NC and Robeson county nc just about all of them looked like they were ready to fall down, and probably was a mistake to go inside, lots of barn owls and other 'critters' including one angry skunk, (left him alone real quick) but two types of construction, log and framed with upright siding covered with tar paper/green heavy stuff that comes in rolls, then had battens in them. Most had at least one shed on a side, few, relative few actually were rebuilt into homes, there are three on hwy 17N north of Jacksonville NC and one south of Henderson nc
me, heck what did i know i grew up in chicago and all i knew about tobacco was it came in a pkg with a camel on it. i never saw a chimney in any of the barns all i saw were rusty round ?POTS? that looked like you could attach a hose or line to and it would drip burn, but did not find any that were or looked like they could operate today
never saw a chimney, my wife who actually remembered the fields with her grandpa
would tell me about "sand lugs" and huge bugs that she hated, and she also said you never were the first one in a barn to get the 'backy' out due to all the dirt coming into your eyes, and how her grandmother used to take a leaf out of the burlap bundle and make a presentation tie on it to display on the top of the bundle at the auction
next season I need to take some leaves to her and she if she remembers how to tie that presentation leaf, she also told me of the tobacco auctions and how her grand dad would look so nonchalant but in reality knew precisely what was happening on the auction floor
thanks for your input, i have a long way to go to make it look right, i wanted to make cedar shingles but man would that take time, so i looked up tin roofs and lo and behold civil war times they were out there
now i have to get the setting on the board right, with the right kind of abandoned looking "junk" laying around