Had I been able to work on it for an entire day, it probably would have been around 3-4 hours, but took longer because I had about 30-45 mins a night and then had to clean up so the kids didn't get into the mess. The oven was down for about a week as a result, but you can make do with an air fryer and a toaster oven for quite a bit.

For an experienced tech I assumed at least $50 for the house call and then a few hours for the disassembly and reassembly.