I took a look at your auction on ebay and I agree your price is a good deal. You have identified the problem, how do you get exposure? These days the internet is the number 1 source people use to find boats to buy and the main way to the internet is through brokers. There are many good hardworking, knowlegdable brokers out there. There are also bad ones. Maybe try asking for recommendations for your area.
There are web sites that handle private sales too. I found one, I'm sure there are more, in a google search I did. It is www.boatsdepot.org/
. Gives you another option. Also Cal may have a forum on which you can list.
Just some thoughts, good luck