Not worth it you won't have time to do anything with him.
Personally I would never start pairing an animal unless it had been in quarantine for 3 months (does not matter who the animal come from)
When/if you get animal on a trade you are looking into at least a year to see any type of results, if you see any, sometimes the animal takes longer to acclimate to it's new environment, won't eat won't breed and we are talking having the animal 2 seasons in a row.
So not worth it especially considering that you can find a proven Male CG or Banana that will be YOURS for $350/$400