
Is he BAER tested? Is his black ear run-together spots or a patch (the hair is usually softer on a patch, and it may extend onto his head slightly. Are there any white hairs in it?). Is his registration endorsed?
Also, to make bitch owners aware of his existence they'll need to see him - and the easiest way to do that is to show him. If he does well they'll ask you for a copy of his pedigree to see if it's suitable for their bitches. If he doesn't do well, nobody'll ask, and he probably shouldn't be used anyway.
By the way, the bitches will travel to the stud (you may need to put them (and their owners) up for a day or two), not the other way about.
:)