Easily $150-200+. These accounts are genuinely hard to find, and many people are on the hunt for them. If you're the original owner and the account is not jacked, I'm sure the margin will increase. Put it up for sale, I know dozens of people right here on FK will be interested.
I wouldn't get this personally, as honestly you don't seem trusted enough to where I'd be able to swap something important onto it and be comfortable. There is always a chance of you filling an unauthorized access claim.
Still, $150-170 for this. Anything between that range.