It's still unlikely. Barb doesn't seem to be there, so she is probably in the care of relatives. She might want to keep 14BC around to house Chris, but she probably won't be there. If she's been assigned a guardian, then it won't be up to her.
If Barb wants to see Chris, she can. You can't force adult, free family members apart forever unless one of them wants to be apart. That's called freedom of association. If Chris were on probation with a suspended sentence, or parole from prison, they could restrict him against Barb's consent, but they can't give him a suspended jail sentence since he'll have already done the max.
They *COULD* give him probation with a suspended sentence by adding a $2,500 fine and suspending that portion of the sentence. If he violates probation then he gets hit with the fine, which he won't be able to pay, but that probably wouldn't mean much. And of course if he had $2,500 around somehow he could just pay the fine and be free of probation.
EDIT: If he does get slapped with the fine and he just ignores it, they can jail him for contempt of court, but as long as he keeps up to date reporting his income in good faith and why he can't pay, they can't jail him. They might be able to garnish part of his tugboat.
They could place him anywhere in the state. There's no rule saying he has to stay in Greene County or the C-ville area.