I would not be discouraged by the length. In my experience, many end users don't put the same scrutiny on length as seasoned domainers. I recently sold a 18 letter .com to an EU for a nice profit that most here would say was worth xx. JFYI, I have a VERY similar domain(but shorther) you may want to create a package. PM if you want more info. As is, I could see your domain selling in the high xxx/low xxxx to the right buyer.
Good Luck