It doesn't necessarily have to be a conventional bicycle. Folding luggage/grocery cart (40-150 lbs capacity), stripped down umbrella stroller (40 lbs capacity), folding golf push cart (50 lbs?), rolling backpack/luggage (20-50 lbs), and folding bicycle/push scooters. If you don't need to ride it, there is a wide selection of rolling load carriers. My only .02 is to restrict your luggage size to carryon since you're going to be sharing luggage space with a lot of other people.