Going by some of your posts, I would definitely try it out with a group, using loaner gear, first. Just to see if it's realistically something you can do regularly. Depending on the event, there's a lot of marching. Now I don't expect everyone to be like myself and a few of my pards and insist on going full gear(full knapsack included) for a parade or into battle(I do both, it personally doesn't bother me in the slightest, but I'm much younger, on my feet for work, and participate in athletic hobbies), but it can still be a lot, even with the bare essentials(leathers, canteen, musket).
Might I offer a suggestion? Cavalry. There are, much to my derision, quite a few "dismounted cavalry" groups around. They portray(often badly, but not always) cavalry troopers in uniform and equipment, and follow dismounted battle tactics, but don't require you to ride a horse. There tends to be a lot less marching, less emphasis on moving in formations, much less equipment being carried, and a much smaller and lighter carbine vs a big heavy musket.
Also I had no issues going in bare feet, just as many of the original boys had to, on occasion. It's not something I do all the time though, it depends on the scenario and terrain.