Been there, done that. I should never post until after I have had a few drinks, say, 9am or so!
The third pipe sort of looked a little smallish for 91 use, compared to others I have had. Maybe with a 77 or something. Like you, I have not mussed with the 82 yet, but the other two pipes should do fine for that.
How do you tell an OPS 80 from a 65? A friend of mine picked one up the other day, had a gold head and "865" cast into the webs of the front housing...