That account is obviously worth a lot, but one thing to keep in mind when selling high value accounts is buyer confidence. Even if your account is legit, buyers tend to be cautious spending big money with newer or less-known users. The concern usually isn’t about you specifically it’s just the risk that comes with account sales in general.
I understand you might not have it on the market yet but, to get the most out of your account, focus on proving your legitimacy and ownership as clearly as possible. Building your name on the forums and collecting some vouches over time also goes a long way toward helping people feel comfortable dealing with you. The more you can show that you’re genuine and the account is secure, the more comfortable buyers will be paying what it’s actually worth.