Had over 10,000 miles on my 2000 Arctic Cat 440 Panther 2-up when I sold it... never had a rebuild, and still ran perfect. Hated to sell it, but I was moving to FL at the time.
Scrap the 4-stroke requirement, and look for something with reverse!!!
2004 Polaris Trail RMK 136
1997 Ski Doo Summit 500
2000 Arctic Cat ZL550 ESR (in NY)
2000 Arctic Cat 440 Panther (sold)
1980 Arctic Cat Jag 3000 F/C (in NY)
"If it ain't broke, take it apart and find out why!"