Thanks for the hitch input. Had to drop the receiver down that far to clear the rear roll pan. Yes, 1/4" plate for mount. Empty trailer weight ( fiberglass box on a simple square frame ) is approx. 350 lbs ( tires and all ). Can't see it over 1000 lbs. gross. For and aft won't be a problem, but might consider "boxing in" the down section to address your twisting concerns. Thanks again for the input.