It was a piece of cake getting the old faucet and sprayer out of their 10-year lodgings. Even not too bad attaching the supply lines to the new faucets. (Kewl trick I learned on one of my favorite home shows ? hook up the water supply lines to the faucet BEFORE placing it on the sink!!) Lefty loosey, righty tighty comes in handy too, remembering which is which while upside down is something entirely different. Working in a very restricted area, with a totally demonic tool, the plumbers wrench, is a study in insanity. Every muscle in my body was quaking when I finished. BUT ?
I now have a beautiful, shiny, new faucet, and sprayer, in my kitchen sink!

It would also be suggested that a project like this one NOT be taken on, to be completed in less than an hour, while the spouse is not home. Inevitably, it will not be finished as quickly as thought, and the spouse will enter said kitchen to find you wedged up under the sink. This action does not go over well.