I'm not trying to defend the machine shop, but in his defense, all I asked him to do was remove the cam/bearings, replace the bearings, hone the cylinders, and give it a hot bath. I didn't ask him to remove any of the plugs as I had planned on replacing them myself. So, when I went to replace the plugs, I did so one by one. That's how I missed the rear cam plug.
That's what I was doing, but then again I got distracted by the damn oil leaking from the back of the block. I'll give it another go. I think I can reach far enough to engage the drill motor and turn the crank at the same time.