There ya go. No matter how you look at it, it's gonna cost you a pretty penny. One option will be labor intensive, costly, and take a lot of time, but will be a permanent solution. The other will be costly, too, plus there's the matter of having 600 ft. of extension cord laying on top of the ground and the hassle of rolling it up, moving it out of the way to mow, etc. Since a previous author has given you an estimate for 500 ft., I think you can figure $1 per foot by the time it's all over and done with.
