By looking at the schematic and finding the ignitor and gas valve, I found that others had experienced a similar problem with their ovens. Specifically, the part about the ignitor having to glow "white=hot" as opposed to just red/orange hot (what mine was doing). Since the broiler in the oven still worked (separate ignitor that glowed white-hot) I took a chance and ordered the oven ignitor at 4:30pm in the afternoon. The order entry woman informed me that it would still ship that day from the Memphis, TN depot and that it should arrive in a couple of days. Sounded OK for me. However, it arrived the next day, before noon (FedEx Ground) to Madison, Wisconsin! I was more than a bit surprised and very pleased.
Thanks Appliance Parts Pros for all you did to make my repair happen quickly and easily!
(P.S. the "how-to" video really helped!)