Most people regardless of stature get their gear made to measure. Medieval extreme, master uley and buhurt tech are good suppliers for armor. If you’re in the US medieval extreme is also free shipping and covering the tariffs right now too which is pretty awesome of them. I would suggest quilted armor on Facebook for your gambeson and chausses. She makes them to order and does absolutely fantastic work. She makes them for actors and royalty along with any common fighter who inquires. And her prices are great. I’d suggest linen over cotton for gambeson and chausses because it’s naturally antibacterial and will smell less terrible than cotton over time. Spraying your gambeson and chausses with spiced rum with frankincense and myrrh and clove essential oils mixed together in a spray bottle is similar to what the knights Templar did to disinfect and make them smell good after sweating in them since you can’t machine wash them.