pop into merlin motorsport then 
Looking at the pics again, just looks like you need a different end fitting, as the seat is the wrong type for all the adapters listed.
I think merlin can do swaging, call them to check if they could do it Saturday morning for you, you will lose a little length on the hose

Looking at the pics again, just looks like you need a different end fitting, as the seat is the wrong type for all the adapters listed.
I think merlin can do swaging, call them to check if they could do it Saturday morning for you, you will lose a little length on the hose
need a part number? http://public.servicebox.peugeot.com/ and http://service.citroen.com/ will sort you out.