We did my wings a few weeks ago, with the tanks installed, but the tank attach angles not bolted to the fuselage. I figured it would be a lot easier to torque the tank bolts with them sitting nicely in the storage cradles than it would be if I was lying on a creeper below the wings.
I had three helpers - one on the wing tip, and two at the root (one each at leading edge and trailing edge). I supervised as they slipped the wing in place, then I climbed in the fuselage to insert the bolts. The ailerons and pushrods were installed, but the flaps were off.
The whole process went very smoothly - about 45 minutes from start until both wings were on with the large bolts inserted. The only part that took longer than expected was torquing the nuts. It took quite a bit of screwing around to find the right combination of wrenches, extensions, etc to get a torque wrench on the nuts on the lower bolts.