Do we have a consensus?

Almost

I offered buíoch and Labhrás also agreed with that but added two phrases which I agree with.

djwebb2021 commented that those are not correct because of the spellings: his view is that any reformed spelling of Irish is incorrect. Instead of buíoch he offered buidheach which is the spelling before the reforms took place.

In my opinion, it is up to you to choose which one you like. As explained above, you can also have it written in the older font as shown above.

You can also consider Labhrás' third offering, altaitheach, but you'd have to get his opinion or others' opinions as to the nuance involved. Personally, I don't see a real difference and would stick with one or the other of those above.

Thank you Tim and everyone!