Wow. I am so surprised you have not sold your drone yet. I sold mine in mint condition with 3 batteries, a cheaper carrying case than yours with the original box and all accessories. I sold it locally and on craigslist. Post it on your local craigslist. It will sell.
I put my ad for $650 and said FIRM. I sold it the next day for $650. My flight was way less than yours though after 1 year of use. And I sold mine a week before the
Mavic 2 was launched. Of course, I put the money towards my new M2Pro that I just received yesterday.
You should sell this easy locally. If you ship, you will lose money. Locally is the best option.
Goodluck on your sale.