I installed approx. 2000' around my yard and it works great. I went to the local equipment rental place here and they carry a fence installer. The machine is made specifically for this purpose it digs the trench buries the wire and covers it back up. Took me about an hour and a half to do mine.
Make sure you read the instructions and follow the dog training rules with the flags and such. I have two german shorthairs, one will not get near the fence and the other will test it all the time just depends on the personality of the dog.
I bought all my stuff through pet safe, they have been very helpful. The dogs chewed up the one collar and they replaced it free no questions asked.
Good luck and if you have any questions let me know.