Followed online video instructions, especially ones for removing the oven door. Overall the entire process was very easy, even for an overweight 63-year-old man. Oven door removal and re-installation were super easy. Broke off a stuck metal screw on the igniter. Was able to remove the broken half with needle nose vice grips and found a replacement metal screw that worked fine. Could not for the life of me undo the gas line so I could pull the entire oven out. So I laid a bunch of shop blankets on top and leaned over the back to remove the access cover. Reminded me of my old Navy sub days working in tight spaces upside down. Really, this is a job any able-bodied person can do themselves. Even with the issues and beer breaks, took 3.5 hrs to finish.
My wife is happy again and the floor is clean under the range now.