Help to identify? What models are these?

Hi. I found these two snowmobiles in a barn in the High Arctic Greenland. They have not been running for some some years.
Can any of you identify the model to a more specific level where i can order spareparts?
What parts will i need and what should normally be done to revitalize and old snowmobile?
Hope you are all enjoying the snow.
Best Henrik

Both look to be "about" 2000 model year. Both should have the same (old reliable) 500 Fuji engine. Parts for those sleds are super easy to find.

Clean carbs and tanks, get all the old fuel out and try to start them. If your lucky maybe just a new belt. You'll know more once you run them.

Get the model number off the tag on the tunnel just above the right side running board. It will start with a "S".