I echo the kudos for Cattlevisions. Even if they don't carry it they can most likely get it.
I once was looking for a bull that wasn't for sale except direct from the owner. Couldn't get the guy to go for less than 30 straws. Called Cattlevisions and gave them the contact information. They sold me 10 straws no problem and now that bull along with others from that ranch our in the Cattlevisions catalog.