I recently run my KLX300R 2007 with older engine oil which, I think, resulted in damaging the camshafts (especially the exhaust one; you can see the railing). I attached a picture of the camshafts:

I am wondering if the head cover is okay. It seems alright to me. Here is a picture:


So now I am looking for camshafts / cylinder head. Does anyone here happen to have that for sale? Would the 250 cylinder head / camshafts fit on my 300? What would you do if it was yours?

Thanks,

Jonathan