Stinsoner,
If you can buy those skis in good condition in Europe for that price, buy me a couple sets....I'll pay the price and the shipping. Those skis are worth more than that here, in excellent condition.
I have experience flying those skis (though not on a Stinson), but I never even considered landing in snow with the wheels down. Again, why would you even consider that, unless the hydraulics were disabled, or unless you don't install the hydraulics. If that were the case, you could find penetration skis that would work better, and be lighter

.
But, whatever. Those are some of the best retractable skis ever made. They are wonderful skis on airplanes the size of a Cessna 170 or early 180, or probably your Stinson. I've flown them on Cessnas some and on one Scout. They are great performing skis. With the wheels retracted....
But, whatever winds your watch. Perhaps a more specific explanation of what it is you are considering would help. For example, if you don't have the hydraulics for these skis, the pumps are still manufactured, and don't cost all taht much. Rigging a simple manual hydraulic system is not that difficult or expensive.
Again, if you're serious about that price on GOOD condition skis of this type, send me a PM.
MTV