typically, in my experience a fully grown female gibbon weighing around the 60kg mark will cost the average joe, middle class, hard working person around £500, ($800) bearing
… in mind this covers shipping, upkeep, and also the fact that it is actually illegal to own a pet gibbon. Due to this illegality, expect prices to be steep. Gibbons are a larger example of the ape family, so you can expect there to be some expense when it comes to upkeep of your new friend. Diet You can keep your gibbon on a human diet e.g. mcdonalds, KFC, wends etc... However it plays havoc with their digestive system so it is advisable you feed them with fresh fruit, nuts and milk etc (good sources of carbs and nutrients) (MORE) 
