Sno Sport Parts

Anyone have parts for a transmission available?
Rebuilding one for a buddy and the transmission threw a bearing and chewed up a couple of gears. Case & cover appear salvageable but the OE gear is no longer available … Checking with a machine shop to see $ to replicate but if someone has one scrapped it would be great....

mcgivered the transmission and it lives!
fires up but bogs starting out but will spin the track and rev up when lifted ...seems like carb but have got through fuel system completely to no avail ... cleaned carb in ultrasonic cleaner, jets are clear and spotless float appears to be in spec, fuel pump is working, tank is clean and new filter installed...
remember seeing a post re flat spots on the clutch rollers which engaged the clutch prematurely so the ending is under load at start ...

haven't had the clutches apart yet - any recommendations???