Attached I have some images from what seems to be a couple dropped valves, and a severely bent one from my 04 450. I'm looking for advice from people who have been through this before. There is a nick on my cylinder wall, my piston is trashed, and there is obvious and severe head damage. I'm very mechanically inclined, but am by no means a machinist. My questions are, can I over bore the cylinder a bit and put a larger piston/larger rings in there as a price effective option to salvage my top end? And what can I do to save my head, or what options do I have to replace it. I'm working on a modest military salary for a budget, so a new $1,100 head and a $700 top end to fix a $2200 bike aren't really viable options. I'm sorry if there are several other threads along these lines already, I'm just stuck riding a 125 until this beast is running again, so I'm understandably desperate. Thanks in advance for your help.