You can always file a dispute saying it wasn't what stated in the description & say you got a stack of papers inside the shoe box. eBay sides with buyer 99.99% of the time. fucking morons working for the site.
what kind of excuse would i want to tell paypal then?
Assuming that there was nothing in the description, title, or pictures about the pen marks or any imperfectoins - your best bet would to tell paypal that the item wasn't as described and tell them the truth.
Assuming that he did say something like that or the condition was "used", you can try your luck with what I said above^^^ or try the "recieved a stack of paper" excuse that smoke said