Thanks for the reply, Dean! Always appreciate your posts.
I will have to be travelling with this vehicle to Calgary on Friday, so I did a quick fix for now and it seems to work and will probably last the trip. Regardless of what I order and where, it will not get here before Friday/I won’t Have the time to install it.
I was not able to get that adapter more than about 1/2 inch into the muffler. Otherwise, I would leave it there until the other side breaks of, to be honest.
Will probably be ordering a new muffler and tail piece when I come back (two weeks from now). Not sure about the $450 delivered you mentioned though. I am pretty sure there are two catalytic converters and each comes as a one piece together with the manifold for the appropriate side. Pretty sure it is more than $450 delivered.
Thanks for mentioning the carbon monoxide.