I doubt anyone would even pay 5 dollars for that, very easy to attain through a good bot, and if I were you i'd just bot it to 85 and then try to sell it.
Because mining kinda sucks if you haven't noticed. :- /
Back on subject, if you get to lvl 85, why stop there? Just auto to 99 and then you will have some good trade-bait on your hands. Of course, you will probably be ban-hammered at this point, but you may not, who knows.