Did you read through the Skwal Thread? You really should read through every page.
Its been done before and Don "MonoDude" has some of the Nordica Yah Loves(185cm) for sale right now HERE. He is describing it as a "powder skwal". Older model of that ski can also be seen below mounted for Skwal riding.
There are many skwals available on the market today. I would recommend these as they are specifically designed for skwal riding! If you are looking to demo a skwal I can possibly be of assistance. I am currently selling Ace Skwals and located in Connecticut!
If you have any questions or interested in a DEMO you can PM me or email me directly, ace@figmentoriginal.com
Here is a picture of Thias Balmain, skwal co-creator with his original prototype back in 1992!