my friend and i built that last week for skimboarding but it will work fine for skiing. we are also building a roller when my other friend gets back from the beach
that will not work for skiing unless you get some real supports. ill post some pictures of mine tomarrow. mine isnt that simple or cheap. all the materials put togather would probbly be around 175 bucks. but i have the majority of the shit in my basement.
that a decent set up, you should build a drop ramp though cause you will have way more speed, me and my friends have a 5 foot drop in i think, and like two 11 foot boxes that are gnar!