I forgot to flip up my trailer jack and as you can imagine some interesting things happened. Luckily what was left of it served its purpose for haul out. My boat is approximately 5500lbs. The boat has been moved forward on the trailer for more tongue weight and as a result the jack is 3-4' aft of the hitch. The trailer is pretty heavy duty so it's not light either. What rating would you recommend for this trailer this application?