I myself have built many pairs of park skis. The one website I found that helped a lot was skibuilders.com. They have a step by step process for creating some nice planks. The only issue I had with their set up was that their press was really pricey. I would recommend using a vacuum press, It works pretty well and is WAY cheaper. To build your press check out joewoodworker.com. Building a pair of skis is SUPER gratifying, and my friend and I now produce and sell them. IF you have any questions feel free to contact me.