Thanks guys. . .I found a small unit with a solar recharge for $88, Tractor supply, and they claim it will do 2 miles of wire. I am sure my 600ft, 3 rows, per pen will do just fine. So it looks like I am at about $10 per foot for wire or electric but the electric sure is cleaner and easier to install and maintain, no cows leaning on the fence.
Just wanted to be sure before I went and spent the money on this stuff, My wife would be pissed if I come back in 2 months and tell her I need to spend another $200 on fencing. Even though I earn the money she thinks she is the bank, go figure.