Looking for Advice for Suspension Upgrade on 2011 Edge M18


Hi all, My Edge M18 has very little clearance between the wheels and fender skirt. Sitting level its less than 1 inch, however the tires and skirts don't show signs of rubbing.
Does anyone have any recommendations on suspension modifications they've completed on one of the Heartland Edge M series trailers?
I was considering replacing the springs, and adding either shocks, or something like this:Equa-Flex Cushioned Equalizers https://www.etrailer.com/Trailer-Suspension/Lippert-Components/LC279687.html

Has anyone tried either of these options, and was it a DIY job, or did you have it done at a trailer repair shop?
Any advice is appreciated.