my buddy has a 06 1000 that has a piston failer for sale he will take $1000, i dont own a sled but have rode many different sleds in the mountains and have always perfered the summit over the polaris. the machine its self is mint with reverse, electric start fox susp. how is this machine in the hills overall? what mods can be done to make it kick ass? has anyone put an 800 in this chassis?