I am 6'3". The grob 103 is comfortable without a parachute. But I don't fit with my parachute. A lark is a cheap two place ship if you can find one, but after an hour or so you'll be miserable.

For single place, an ASW19 is a great fit. You will need to remove the seat, which takes about 30 seconds. Its comfortable for at least 5 1/2 hours. The asw20 cockpit is the same design, so that might be a good fit also.