I have no experience with rapiers but I am assuming much of the I.33 wards I know using arming swords and buckler would apply in much the same way. I can run 'maybe' 100 yards at dead sprint in full kit but I can fight for a very long time. Of course I train about 10 hours a week and work out every day so that helps.
My full fighting kit includes pants, a linen under tunic, a linen or wool over tunic, pouch, belt, a padded leather gambeson, a mail shirt, lamellar, spangenhelm, broadsword, seax, hand axe, Danish axe or 8' spear and a 34 round shield. Funny thing is, it's not a whole lot more than what I carried as soldier in the 20th century.