Thanks again, this helped motivate me to remove and clean them which I discovered they desperately needed once they were out. For anyone seeing this who is looking for assistance in doing their own, I recommend first soaking in your favorite lube (WD40 worked for me), then twisting the shaft with a wrench. We didn't do that on the second one (got excited after the first one was out and cleaned up) and once the shaft was out the valves were still stuck in place. We had to reinstall the shaft and wiggle the valves to get them out so it's worth a little twisting before removal.

Craig