Need help replacing thermostat

Hi have a few questions regarding an oven Thermostat Part Number: AP3022942 Made by WHIRLPOOL
I got the element and replaced it all is working but heat is not controllable any more soI assume the thermo is bad too- here is some history wife dropped thermometer on the baking element and fried it-welded maybe more like it.
So I got replacement from these fine folks, fast to so thanks you guys are great. It cooks now but the baby goes form 0 to 600 no stops.

So the Theromostat looks more difficult mostly because I have no visuals or repair manual and I want to know 2 things. Can I get a step by step or diagram of what is where-just the basics would be great and what to take a part and would a new theromstat and element be a pretty likely complete fix or do I move on to a new unit although this one works and is in fine condition? Any help would be great I think this is an easy fix just want to do some homework first and get parts I need or take some good advice and invest time and effort elsewhere I just hate not fixing something that works fine or did and should.

Thanks,

Peter

Here is your parts breakdown
Replacement parts for WHIRLPOOL RJE3165W0 | AppliancePartsPros.com

And a general Whirlpool repair manual. Take a look at page 3-12
https://secured.whirlpool.com/Service/SrvTechAdm.nsf/2cd44500d572193285256a45004fd9d6/2bdb6446d5dcf4af85256a8c00617041/$FILE/4321893.pdf

Looks like all I should need. Thanks for the manual and info.

done and uo and running 1 hr and next day shipping very impressive! Nice wings for the game were on point!