One of my good buddies, who is actually letting me rent a room from him in his house, really likes BEL's so I told him when the time comes and I produce one I'll just give it to him for free. My situation is kind of like yours, I have grown up with him and he is basically like a brother. I told him he could have it for free, as long as he lets me use it for breeding the first year it is up to size. After that, no more conditions! If he wants to sell it, I'll help him get good market value for it but the cash will be his. Thats just me, but it's really how you feel about it. They are your animals so ultimately you have to decide how you wanna do it.