i would sell mine sr member for around 0.4 btc
1) Don't post openly with your account about how you're going to sell it. Negative reps are bound to come in as you're a bit high ranked.
2) HQ Sr. Members go for about 0.25
BTC. They normally go for 0.2
BTC.
3) There is a thread in the scam accusation section about you.
So I very much doubt that you'll sell your account.