2009 550 top end kits Major internal carnage

Ok i just bought a 2009 camo grizzly 550 efi eps its in great shape except the top end when i bought it they said it was running just smoked but the battery was dead found the timing jumped smacked the valves bent one snapped the other one not that big of a deal i found it before it got worse no damage to the head or cylinder but i am going to do a top end rebuild and i am having a hard time finding kits that arent costing a arm and a leg right now i got a list all 4 valves timing chain wiseco billet stock bore piston and rings and a complete gasket kit and its just over $400 anyone have any leads on some cheaper kits

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