Thank you everyone!
I managed to get another rope on his halter....this one has a 192 lb safe loading weight ( I think that's how the packaging worded it) so, hopefully he won't break this one.
He is definitely more worried and stressed, and really wary of me now

....I feel bad, but I don't think we would have gotten anywhere going the way we were....I'm thinking I may back off a little bit since we aren't going to make this farrier visit (he called and said he's coming this Thursday...earlier than expected....but, I don't think an extra week or two was going to make a difference anyway) I'll ask him his opinion on how much longer Kazoo can go before we HAVE to have him trimmed.
I wondered about giving him a choice....like if I should just back off when he doesn't want me to touch him...well, he never WANTS me to touch him, but most of the time he'll let me...at least for a few seconds....but, today he did back up and try to walk away. I gave him a few seconds then tried again until he let me, then I let him go. But, I was wondering if maybe I should back off for a while when he does that...so he knows if he's really not up to it I won't force him...but, then I'm afraid he'll just continue to do that?
So far my plan (such as it is) is to have really short sessions with him, just working on being close to him, scratching his forehead if he seems ok with it , mixed in with being in his stall/turnout but not trying to do anything with him...so he doesn't always expect me to be harassing him.
Poor little guy.....