Why not open auction thread you might get some good offers or bids. Legendary accounts are pretty rare, I think 2+ BTC is fair price. I wouldn't sell mine below 3 BTC.(If i had one lol)
if i had i dont sale it for even 3 BTC because i earn that legendary rank why sale it to someone else your name and your reputation which you earned in alot of years there are other things to sale if you want to make some money