For what it’s worth, as a wheelchair user myself, I wouldn’t have a problem with a GM saying that, no, that kind of wheelchair doesn’t fit an Ancient Greek vibe. I’d want to work with them on an alternative, like a small brass automaton that can carry a person in a fixed chair, or a two-wheeled cart pulled by a couple of dogs (a friend of mine made one for her Malamutes to pull when she had a broken leg not heal right and it served her great for a year or so near Mt. Shasta), or something like that. Adapting to specific circumstances is A-OK with me as long as it’s not just pushback on the basic concept at all.