.Org is also a strong extension but not so much in crypto. Hence, this is mid xxx to high xxx given that the keywords are pretty strong. Put a $1500 tag with Make offer and negotiate.
There is bittrading.com and you may try to let them have it. However, I believe they had a reason for not taking up the .org when they got the dotcom or that never came to their head. It lies in how you can convince them to have the .org