Advise on building a wood shadow box fence.?

Where do I start, any good web sites, tips on keeping it straite and true, where should I buy the supplies I am capable of following instructions and the digging and physical labor required and I have help. How long would it take for 300 feet do I nail or screw i could get a nail gun. I have access to almost any tool but an auger.|||Hire someone to come in and put in the fence posts in the ground it%26#039;s hard to get them straight, after that if you can measure cut and nail you can do it in a day.|||Start with little flag markers. To keep it straight and true - use lots of string - run the string one end to the other to mark were to place the posts and to true-up the height. As for nails or screws - depends on where you live. Nails will pull loose with temperature changes and allow the fens to shift. I live in an area that gets into the 90%26#039;s F in the summer and -20F in the winter and we must use screws and bolts to hold things together.