I am sure this is a common request, but I am looking for as good a replica as possible of the map in the Goonies movie - highlighted here : http://www.propandartifact.com/main.html

I ideally would like to make it myself, but I have no clue where to begin. No idea where to get vellum and no clue how to do the 'burning technique'

I understand that this would be quite a bit a work and I very willing to pay a fair price.