Scottrade does partial fills, I have to assume other brokers do the same...Ive had a partial fill on one of my sell orders...
No guarantees here at all, there could be multiple sales at your price, and your not going to get filled at all, because this is all trade for trade, manual trades, the brokers have to work to get these done...
Unless your aware that someone is out there with a bid/buy price and willing to buy, thats really the only option right now is to look for what is available through your broker, other than that just put out sell orders GTC at the price your willing to sell and hope for the best...GLTA...IMHO...