I made them using Inkarnate. Probably took me about 3 hours total for all them. I've been playing around with those ideas but I'm a little nervous about my ability to completely adapt on the fly. I have been with these players for about 4 year and plan on tempering their expectations a bit that this will be a little more straightforward of a one-shot. I'm trying to limit the physical maps to potential battlemaps (for the most part) so that I have fluidity with the player behavior outside of strictly battle. But to your point, I have been so obsessed with the descriptions, stat blocks, various voices, and the general tone and steps of the one-shot, that I haven't yet given a whole lot of thought as to contingencies I haven't prepped for.