Well, I changed the wires over the weekend. It took me about 12 hours roughly...but I also did some cleaning... polished the plug shields, degreased around the block...I also had to drop the starter to get easy access on the right hand side. Also took lots of pics along the way. Reinstalling the shielding and running the wire correctly was the biggest PITA. I did all this lying on my back, feels like I got a sunburn. I figure next time, I could cut my time to 4 hours.