( i may be wrong but im suffering from information overload at moment!!) i think i read somewhere that for a bagot billy to have registered progeny, they need to registered but also licensed (same with some breeds of ponies) to make sure they are up to breed standard. we are in NE scotland but will travel anywhere to get the right one. Would prefer a young billy so we can tame it, but then run the risk it doesnt come up to scratch when its older and it has to get licensed.
i think there is a farm park up in scotland that has bagots, so might be some contacts there, also there was a breeder in anglesey, but i think mine are related to those. Theres no hurry though, but would be nice to have an idea by autumn.