Most WD hitches come with an adjustable shank, how much depends but you can buy WD shanks in various sizes. Definitely get that nose down, sitting like that it'll catch a lot of air at speed which can take weight off the wheels.. get into a side wind and it may be time for a change of pants!
Least of all get a regular drop hitch to bring the trailer lever or slightly nose down.
I would suggest a WD hitch with sway control, that's a long trailer.. not terribly heavy but a lot of surface area.
You might want to read this:
How Towing Weight Distribution Systems Work - HowStuffWorks
and this:
Common Weight Distribution and Sway Control Questions | etrailer.com
Between those two that should give you a good overview of what a WD hitch is, the parts involved, advantages..recommendations..etc..