2005 magnum 330 4×4

im new. I have a 2005 Polaris magnum 330 4×4 that has been to hell, and im trying to bring it back.

im looking for a service manual, and advice this is a must do mission for me.

so far. I broke the motor loose. new batt. new starter, cleaned carb, changed the oil 5x. got all the water out.new plug. tapping badly. pulled the top half. Both valves have made contact w the piston, causing scarring. shaft bearings seem good. rod bearings are bad, I can move the rod in and out left and right. scarring in cylinder, both horizontal and vertical. I can see and feel them. piston is marred on sides. I appreciate any input, this is my 1st rebuild, of any kind. thanks.