I will keep my eye out as well, what color are the sleds (sorry not a poo guy)? Any marks, dings, aftermarket parts, or stickers that could identify that it was yours?
Also I know cat does this but you should call the polaris main office and report this. I believe they have a way for their dealer network keep a eye out for the vin #'s of the sleds. Dealers should have to take every vin# down if the sleds ever goes in for work. Even if they went to New York and goes in to a shop you should know.
Maybe they will part them out - but most dumb asses that steal sleds dont have the knowledge or buyer(s) to strip a sled and sell the parts - but keep and eye on ebay for your sled parts or the entire sled.
The late 80's truck probably means they did not go back to Minnesota with some spring breakers - I bet these jackasses live in leadville, minturn, newcastle, rifle, or somethin like that.
Sorry again man, I hope that you get your sleds back.