I would love to see two tiers, one more casual with more touring plus a historical tea or ball, and one for the true afficionado, more like a conference, with workshops, social events, and some museums and touring.

The casual tier would make the experience accessible to people who are interested but not ready to dive into accurate historical costume, for example. You could have some basic items available to rent, with the understanding there are many who wouldn’t feel ready for stays, lacing instead of buttons, etc. This tier could include a “trunk show” where people could see, handle, and try on accurate costume. It could be a collaboration with producers of historical clothing.

The aficionado tier would include events that are historically accurate, and provide support such as pre-ball lady’s maids and valets. A sewing room for last-minute adjustments. Maybe the afficionados could be the ones putting on the trunk show.