Howdy,
I size of your fire does make a big differance in the amount of smoke and it does not take much fire to keep your lodge warm. The hard wood idea is a good way to limit the smoke, but the soft wood pine may create more smoke because of the ceasote it produces.
You may need to adjust your smoke flaps some what due to changing wind conditions.
Where you set your lodge up can have a bearing on the smoke inside also. When I used to set my 18' lodge up, I tried to stay out of the woods because the air thru the trees does not blow in a steady direction and I could not keep the smoke flaps adjusted properly.
The gas fire logs idea might be good on someones private property rendezvous, but I don't think it would be acceptable at a period correct event. Gas is usually only ok for food vendors and only then once inspected. If I were you, and wanted to try to use this, I'd contact the event organizers and check on being able to use it.
Sorry if I'm rambling, but these are my thoughts. :yakyak: