Miki, I understand exactly what you are talking about with Chester because Angus is the same way.
I have no doubt that in time they could learn to co-exist, but like you, I wouldn't want to take the chance of them *ever* having a encounter. It would be great if it would work out, he sounds like a wonderful guy, if not, I hope he finds a great home
I felt the same way about Rose-but I just don't think it would have ever worked out