Isn't there a tool out there to bruteforce a sentence with one bad word?
I think so but if not I can make one quickly
Yep... btcrecover can usually work it out fairly quickly... however you need the "incorrect" seed, and a known address generated by that wallet. Sounds like the OP may not have the address. I think so but if not I can make one quickly
This is the most "up to date" version of btcrecover (that has added extra features over the original by gurnec): https://github.com/3rdIteration/btcrecover