I'm not exactly sure what the problem was. I did everything that was suggested in this thread, with Starkie's oil trick at the end. As I was double checking the fuse panel one last time, I noticed that several of the fuses looked old and worn, and that the sides where they contact their keepers looked a little oxidized. So, since I was out of all other ideas, I thought it wouldn't hurt to twist each one in place to try and establish good contacts in case there was a problem in there. I turned the key and she fired right up! (with a lot of smoke coming from the tailpipe as the oil I poured in was burned). Thanks to all who responded! I now need to go back and give several thumbs up to you! It's great to have my vehicle with a trailer hitch back in service.