It looked cool, but a bit complex.

I dont think you can go much simpler (KISS??) than the Isabella Classic http://www.isabella-iceboat.com/iseng.html#Isabella
If you want to get funky, you fair the plank for more 'downforce' and add a lightweight fuselage. There was something on their website about buy a set, where you only need to source the planks and rig+rigging locally.

There are some board solutions, but my a** ache just by looking at them. My partner in this project has never done any windsurfing, so he was less than positive about a board with windsurfer rig. Would be much easier to lug around than a full iceyacht tough..

Altough it's not much ice here (to much snow), we plan to buy materials for a Isabella coming saturday and improvise our way. I am sure we will have fun with such a setup and a 6.5m2 windsurfer rig.