Although I seem to be in agreement with you overall when it comes to at least option A, if not more, he really did post a thread about finding this other person.
@Duck referred him over to this thread knowing we were recently/still are (in some cases) across the street.
@Trucker186 the screen name over there of the person you are trying to find was " '07 KW w/53' Conestoga"
No, I never heard of him. No, I didn't know him. No, I don't know any way you can make contact with him. However having the correct name may be beneficial in your search. Personally I am having a hard time figuring out how you don't remember the name of someone that you considered to be a friend over there especially since you said you had only a few, but no matter, either way at least you have the full name now. Maybe try Google, he might be active someplace else.