Another option is to put pickup truck mud flaps on the bottom of the fenders. That’s what I did and no more mud and water comes in the cab.
I did this with mine, but they were big rubber ones for a semi truck. Cut them down to size and left them long enough to hang about 3-4" below the front fenders, and no more soaking wet muddy thighs. I like having the lower doors open like that so this was a perfect mod for me.
I had first cut out a couple big pieces of mudflap that I mounted on the inside of the cab to cover the smaller rear holes but I've since removed them as they weren't needed with the fender flaps.