I've heard it both ways about which parent has the greatest impact on kid numbers. I tend to think it is a combination of genetics, buck potency, doe heath and general care. We had a good green summer here, but the mill mix we were using just did not cut it. The does were in good flesh, but overall, the kids are averaging 1 to 2 pounds lighter. We just finished fall kidding 6 does and they all had twins, one set of bucklings and 5 sets of one of each. Most of them usually have trips, but they are older girls, so who knows. We will kid out 20 or so young does come early spring, but we find that the old does do better if they are prego during the late summer and fall, not the winter.
As for delivering a buck, I'm pretty sure we can work something out! I am planning a quick trip to Montana in March, but as for other plans to head west, I'm not sure yet. We will have 2 young bucks (10 months) for sale as soon as we are done using them. One is an Austin son, the other is an embryo we purchased. Both are very well put together buck, we just do not use the same young bucks over and over again. We use Austin on the foundation does, and get a young buck every year or so to breed to his daughters for new bloodlines. We are also having our annual open house in February. We have a private treaty bull sale on one day and a private treaty goat sale the next. As far as pricing goes in this area, a good registered yearling buck will run $600-1000. The average registered bred yearling doe with cost about the same. It may seem high, but this would be for show quality stock, not the dairy cross, skin and bones "Boer" goats you see at the sale barn.
By the way, I love the bargain doe in your last post. She should get the job done! Did you end up with the red buck you were interested in?