Now where shall we start with this? Well firstly I will say that this is a bit of a puzzle but at least you will not have to go hunting round half of Scotland to find clues to help you solve this! All the information that you require to deduce the coordinates are here.
There is no need to leave home until you have solved the puzzle. I suggest that once you have worked out the coordinates you e-mail me and I will give you some suggestions of where to park and where to walk at it is not obvious from the map. If you insist in parking as close as possible and blindly following the arrow on your GPSr then I hope that you take some chest waders with you! If you find that you have more digits than you need, drop the trailing zeros.