The boots are tough to get off because I don't think those wires or plugs have ever been replaced from the previous owner. So far, I have been able to get one of the boots off in the back. The main trouble I am having is the socket wrench.
Room is the biggest problem. I've removed that back bracket on a few cars. 2 13mm nuts hold it on. With that gone life has far less profanity. You will then have better leverage to twist and pull the boots off, and get a socket back there to remove the plugs.