check your valve clearances before you pull it apart. and write them down that way you can adjust them before you put cams back in. make sure you know how to set the timing on this motor or it will be junk before its running. 1 tooth will = bent valves. i would guess if you have all the parts there and ready to go you should be able to do it in about 8-10 hours tare down and back up and ready to go in the bike.
04 Polaris predator 558 Flat track quad
04 Polaris predator 500 trail build(in the works)
started life as a replacement frame so a ground up build
Build predator and outlaw lowering kits