I always tie up all my goats when they get fed, then usually they stay tied for about half hour to an hour while I
refill all the water buckets, hay, milk, etc. Although they are not lead trained they are collar trained. So, it isn't a
big change to learn how to be led by a chain collar.
I also treat them like horses when I lead them, if they act up, they have to walk in little circles until they behave! This
has helped my little grandson with his stubborn goat.
How my kids did theirs... brought them out on their halters and walked them, then put the show collar on and coaxed them to walk. It was a much smoother transition than I had imagined it would be.
For their babies, once they were walking decently, then they put the show collar on while keeping the halter on, and urged them forward with the show collar, if they stalled/bulked/fought them, then they'd also pull forward on the halter lead, and would release the lead and just use the chain once the kid was walking.
I know how your feeling STRESSED OUT I was out in this position in april my Yearling Boer Doe who weighs about 200 pounds I had a show like two weeks away and I didnt work with her so I first Halter broke then the "fun" came when i tried to chain break her I bought a Pinch collar and i put it on at the same time as the Halter and walked her with the halter a i slowy put more and more pressure on the chain and eventually she was walked with the chain OK so I really hope that made sense