Hello!
Of course! I'll try to answer as best as I can.
1. It is not implemented yet, but yes, I do plan on adding more to that in the future!
2. Yes there will be other options to give away desires in future updates!
3. It's planned, but might take a while until implemented, since I want to overhaul their entire dialogue if you've sold them once!
No problem! I'm always glad to see when people are still interested in the game and I'm glad to answer any questions, ha ha. Thank you for the support!