yz426f help!!! blown engine where do i start

my 2002 yamaha yz426f broke a valve and need to know what i need to replace first. the head is apart now. i going to atempt to do the the repairs myself. i bought crank spliter, crank instaler, pistin pin puller, flywheel puller, and clutch/flywheel holder tools. do i need anything else. they said at the dealer i proboly should replace the crank rod. do you think i need to buy a new cyilinder.

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how do i post pics

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