Hi,
I've done the Kennet a couple of times single handed. If you've managed the Thames the Kennet will be easy. At Fobney lock the landing is a raised pontoon with the bywash water flow coming through underneath. Just need to hop off and get a rope secured so the boat isn't pushed off the pontoon. County lock is just below a wide road bridge and the lock landing and bollards are actually on the towpath under the bridge. It's only a problem heading east towards the Thames as if you pass through the bridge the lock is immediately after the bridge with a large weir to the left. All you need do it tie up under the bridge, prepare the lock, and then head straight in. Going west toward simply leave the lock and stop under the bridge to go back and close the gates.
Enjoy, it's a beautiful canal.