Congratulations on the sale. As you have already read, the museum is a really great place for collectors to hang out and talk shop. However, a few bad apples have spoiled the bunch for many new users posting straight in the marketplace for their first stop.
Let me just say welcome and throw out a piece of advice. You brought a hard to find item to the board and sold it for a fair price. Dropping the name of who purchased the item and letting everyone know when the sale is complete (money received and product shipped) goes a long way towards establishing good will in the marketplace. The more people get to know you the more they are likely to jump on your sales threads even if selling items is all you do in the museum.
Thanks for posting such a cool item, and hopefully we will see more from you.
"Procrastination is the art of planning for tomorrow."