Since you never indicated to the seller that you don't want the original box marred and/or you ask him to make sure the original box is packed in a shipping container in water resistant packing, you are partially at fault. Live and learn. When I buy on line , I give every seller, regardless if its a store or not, packing instructions. If the seller doesn't like it, then they can refund my money- cause I know when it arrives, chances are good it will get damaged.... been there done that. So far that has only been less than 1% of complaints that I have received and that's fine with me.
NOte, You should give notice to the seller [abeit- not a nasty notice but an informative notice] that the box constitutes 30% of the value of the item. By him being cheap -taping up the oem box and shipping it as and counting on a 20-30 year old box as a safe way to ship is a big gamble! Without a shipping container to prevent damage to the original box, you automatically lost value in that item.
Then I would leave a neutral feedback so the seller will be reminded time and time again for his mistake and hopefully not do it
again [abeit a "***** slap" in his face].
