here's a little info.
Equal-i-zer(brand name), with built-in sway control is made by Progress Mfg.
If you go with this, it is all you will need.
has a good price on the Equal-i-zer with built-in Sway Control for $399.00
Prodigy brake control, by Tekonsha, is one of the best brake controllers.
has them for $94.99
This photo is of a REESE Weight Distribution hitch with the Dual Cam sway control added. They are two separate items.
This is the Dual Cam sway control. This is used to control sway when added to the Weight Distribution hitch. It's available at etrailer.com
Maybe the $349 price he quoted you is for the WD hitch and Brake Control combined?? Then he is adding the Dual Cam for sway control??
What do you think????