Catalytic converter stolen off 2021 SR5 Crewmax, need some advice

Hello, I just had the passenger side catalytic converters (both) stolen off of my 2021 SR5 CrewMax. They (obviously) took the downstream O2 sensor as well. The upstream sensor is still present and unaffected. I can't find a replacement cat, aftermarket or OEM, and have been told that it could take as long as 6 months to get one. I would like an interim solution and have been considering installing straight pipe until I can get a new cat (because I can't go 6 months without my truck!). The issue is the missing O2 sensor. I found an O2 sensor simulator that I believe could solve the problem, but wanted to ask on the forum to see if anyone else has used this approach with success. The simulator I found is at the link below:
https://www.magnumtuning.com/en/detail/ez-cel-fix-oxygen-sensor-simulator/toyota/tundra
I would also be open to other suggestions on other simulators.
Thanks!

 

You need to order some cat plates asap since you will be needing them. As for the exhaust "performance" question and a temporary solution, @dirtydeeds is our man.