You could try contacting area rescues to see if they have or know about any cuy. They may have some in their rescue that they don't list since they are so hard to place. Don't cuy do okay with regular guinea pigs? I'm not sure.
ETA: I just saw a post by CavyHouse on another thread. She stated:
"I've had a lot of luck too placing cuys with non-cuys. It did seem to calm a lot of them."
I will contact the rescues in my area (there are like two). My mother won't let me do boar dating at the nearest rescue, which is 75 miles away. aI just want him to have a friend. Let me know of any cuys in the area, as I am good with mine. Not too many people understand cuys, so I will take them