Building Ice Shack with Square Tubing Frame

[madmax7]

I am looking to build a 7' x 10' ice shack capable of sleeping 4 people. It will have a table that folds down into a bed and also a bunk above the table that will also sleep 2.
My question is, does anyone have pictures/diagram of how to make good skis using 1" or 1.5" square metal tubing? Then mounting 4-5" teflon on the bottom and bending it up in the front. 
Any concerns about this idea???