I'm older than that by 10 years, 140Kg and knees are shot
If I lie on the ground I need a Fork Lift to get up
You don't need an RV3 unless you want heaps of room
I have an RV1 and it fits a large single camp stretcher with my king single swag on top of that no worries.
Plenty of room left for bags and gear.
Comfy as with large vents/windows... and 150Cm's high means full head room if I am sitting up
RV2 is OK as well but is longer when packed (same length as the 3/4/5) and I wanted one that would fit in my Tray.