I thought it was a piece of cake to put it together on the truck. The only thing I'd do differently (and they still have to come back off one more time) is put the fenders on the sides before I mount the sides. It's tough to get an arm in there with the tire in place to put the washer and nut on the fender bolts.
Yeah, my shop shark was quite happy he got to help out today. It's a great day when you can teach him what a nut, bolt or washer is and he can hand them to you as they're needed. Next: how to read a fraction on a socket.