I've been thinking of doing it on a locally developed 2WD electric moped/scooter. Went for a short ride recently on the version which can be registered for road use, which should be available in March next year. Not fast, but could be fun. And it's light enough to lift and push if the going gets too tough.
I'm thinking if I ever wanted to try something like that, an XT250 or something similar would be the way to go. Enough ground clearance to get over rocks, but small and light enough to pick up if you need to.