Super Cubs fit plenty fat Americans. They would be fine for you. Load carrying no problem. It will fly with whatever you can stuff in.
Fun, fun, fun. Was doing farm strips all over N Devon and Lundy yesterday, two up, off in less than a hundred yards. Super.
Otherwise a big engined Cessna, a Maule, but these are more expensive, although get you places. My SC, realistically, costs me £75 per hour to run, not in a group.
QDM