That's a pretty simple solutionStack 2×6's along the fenders (inside) so they re ramped for and aft and also taller than the fender. The tires will ride on the wood and not the fender.
Couple screws into the existing decking to secure the stack.

That doesn't hurt the trailer tires if your driving over/scrubbing them?Make em removable. Just a matter of cutting them off and putting 1" angle on them to pin down. Imho that's better than drive overs
I wouldn't drag machinery over them but if it's for your trail rig you won't hurt them tire on tire. You do worse off road. My buddy's trailer came with removable fenders that looks just like yours. I hauled my blazer back from Richmond VA and my Dually back from Erie PA with it. I guess it's a preference thingThat doesn't hurt the trailer tires if your driving over/scrubbing them?
That I have the materials to do now actually.
. I seriously doubt that you would have a problem. In my experience you'll be fine.Pretty much took care of the short term question I had.. thanks guys.
My only real wonder about the removable fender idea is possibly popping a bead on a trailer tire.
They have enough pressure in them that it would probably be fine though.