Market goat project? This is always a fun step in raising project animals. Fun, fun, fun.....
Hahaha, I jest. But, depending on your goat, it may not be too hard. Takes one wether two-four weeks to learn what another could catch onto in a day or so.
Try getting him on the halter to begin with, and taking him (attempt to carry him if you can) to a nice, quiet spot, somewhere he isn't used to. *Only start this if he is already tame.* Let him sniff his surroundings, and travel around where he wants to go. Stay to where there is always slack on the lead rope and pretend that you are leading him around.
If that doesn't work, you may have to take him around with a buddy goat that he knows. When this little guy trusts you, he will follow you around like a lost puppy. Good luck!