An alternative you may want to consider is a "halo collar". About $700 plus $5 mo subscription let's you set up a gps based virtual fence. Very happy with ours. Pm me if interested and I will check for referral coupons to save you a bit.Will do!
I have another estimate with Double Bee next week. Will come back here to update then.
I was going to go with wood initially, but then I learned of the maintenance associated with it, so I think we are going with chain link. If the cost of vinyl is truly why it's so high (he estimated 8-9K for the whole job, which is far too much) then I might just go with the base galvanized chain link.
We just bought a house, and I am not looking forward to having to pay for a fence so soon after... but the dog needs one.
Rick