I just switched from a bumper tow to 5er toyhauler and I found this 15K 5th Wheel Hitch with rails, hardware, Woodalls RV Owners handbook, Lube Plate, and includes shipping, all for $333.33 http://tweetys.com/reese-pro-hitch.aspx
This is the best price I could find for a 15K hitch anywhere...