I wouldn't go all-out with the hoopskirts and stuff, or punctilious accuracy, and I would probably be leaning closer to the end of the period than the beginning. It would be closet cosplay and I would be cosplaying as "lower-class, unfashionable person who is walking a hundred miles."

Or possibly trying to copy the tramping outfits in my Outdoor Girls books, which are in period!

I have been to several marches in multiple layers of long skirts and underthings and a cloak, though (I did the women's march that way not for costume reasons but because warm.) And I've done two-week camping trips in medieval peasant women's costume several times. To some extent you can cut weight because parts of your clothing are also part of your camping gear.

And I can't do the trip in clothes that don't cover every square inch of skin either way, because, mosquitoes.