What is the plan bongorob? No anoa in the long term? If so, why not move them out to a collection that is likely to want to breed them. They are not exactly unendangered me thinks!
The problem is obtaining unrelated stock and exporting surplus males. I can't remember the details but it seems to have become much harder to export anoa from the UK to the continent. The last male anoa to be bred at Chester was hard to place, in the end I think he went to West Midlands Safari Park. Apparently there is not much interest in this species. Chester's pair have reared three males and they do not have the space to keep a bachelor group. It will be a shame if anoas disappear from UK zoos due to lack of interest.