I made a giant mistake by using the self-clean feature on my oven! It is clean now, but doesn't work properly.

The broiler turns on and starts to heat up, but after a couple of minutes, the whole unit shuts off. It doesn't just cycle off, it turns everything off. The clock on the control panel is on with no errors showing, but also no heat or promise of heat. The temperature in the oven is only about 200 degrees at this point. If I leave the door ajar, the element stays on for longer, but still shuts off after a few minutes.

Also, the control panel is periodically displaying incorrect temperatures for the oven, also shutting off entirely.

After looking at parts, it seems that the most possible culprits are:

Oven Control Board
Panel Control Tape
Safety Thermostat
Temperature Limit Switch

My questions are: Can I safely eliminate any of these as possibilities? And can I replace the parts myself?

Thank you for any help you can offer me!