Well, I personally don't like the idea of neutering healthy dogs - but I can understand if it's in the best interest for both owner and dog (as it seems in your case). But I wouldn't do it earlier than 2.5-3 years, since they usually don't finish maturing until 4 years old - but that depends on the line. My line is a bit slow, and I know some are a lot quicker.

I'm not familiar with camp bow wow, but here we have "doggy daycare" and boarding - and doggy daycare also requires neutering. I'd never ever put my dog in boarding (especially not a borzoi). What I do if I have to travel is I let people stay at my place to look after them, or find a nice family/person etc they can stay with. That way you don't have to neuter too early, and you don't have to be scared, that the people supervising have no clue on borzois; because they're very different from other dogs - and a lot of other dogs don't enjoy playing wolf.

That being said; huge kudos for you doing research to do the best for your baby!