First off, I know using barbed wire is not the preferred method to fence sheep but that's what we have to work with and have no other option. We have plenty of 8' railroad ties, steel T-posts and barbed wire. What were thinking is setting the steel posts 8' apart and running 7 wires at: #1 6" #2 12" #3 18" #4 24" #5 30" #6 40" #7 50" We also have twisted wire stays to put in between the posts. What do you think? We can possibly put 2 twisted stays if that would be better. This fence is mainly going to hold cattle but 3 sheep will also roam in these pastures. We know this fence is plenty for the cattle, it's the sheep we're trying to contain. Thanks is advance for any advice you have.