Russ,
Here is a 6" drop hitch. I just flip it over.
http://www.campingworld.com/shopping...op-hitch/21578
Here is a 10" drop hitch.
http://www.google.com/products/catal...2&sa=X&ei=5NDC
Ride height on a Newell is 12". You don't want to just raise it as the driveshafts are very short and you don't want too much driveline angle.