I noticed you are now using a hitch extender. I'm assuming your current trailer is pretty light
, since hitch extenders typically reduce the allowable tongue weight
significantly due to the lever effect (50%, according to the fine print on one I looked at).
If you upgrade, Casita
17s are really heavy on the hitch, in the 400# range (see Trailer Weights in the Real World
), so your current set-up with an extender simply won't work.
Perhaps you could show the pictures of Floyd's and Bigfoot
Mike's racks to a metal fabricator and seen what they can do. You shouldn't need a hitch extender with that set-up, but you will need at least 500# of tongue weight
capacity on your tow vehicle.