We always used to buy (or be given) young calves which we always reared on goats milk sokel. No issues at all. In fact, often when we were given them, ours would do better on the goats milk than the other ones did on powdered. Best success story was a limision (sp?) cross calf bought for £5, fed on goats milk and grass, then sold after a few months for £220! We had a Hereford cross at the same time, nice calves both of them. That was very early nineties, not reared any since then.
Beth