Quite a long journey then, probably best to keep him a little sedated for the trip.
I'm pretty sure 11 year old Mapema travelled from Paignton(Devon) to Duisburg, Germany last year (by road) and without being sedated.(Maybe they gave him a little 'something' though
Formerly Gorillas were always 'knocked out' for these trips but there seems a move away from that now.
M'Tonge is joining at least two other males but I don't yet know if he's the first arrival...