Something not already said is don’t say “it’s the nicest [insert title here] you (as in the buyer) have ever seen”. How can you know that? Only i know what i have seen lol.
One of the best purchases i made was from a pinsider that disclosed everything they knew about the pin, and hell they answered the questions i didn’t think of asking. Most of the pics were of their perceived deficiencies and in the end i got a pin that was better than i expected. Being a person of Pintegrity will get you further in the long run, especially if you plan on selling more than one pin at some point.