Having removed/replaced wings on Foxbats a few times, and generally on my own, I worked out where the CofG of the wing is, and using triangulated ratchet straps, can lift the wing with an engine hoist.
Obviously the tank needs to be drained first, but I usually leave the flatiron on (just pull one of the carden ring bolts), and with carefully estimating the weight with the hoist, all the bolts come out fairly easily.
I usually stick a bit of masking tape at the balance point (1675mm from flap edge, and 380mm forward from the flap shroud edge), and usually tape or clamp the flaperon level.