Boat "Gutters"

[Flatsflyer]

Need to install some form of a gutter over the port and starboard side doors of my trawler. I've tried various ways to divert rain with no luck, I'm now having some wood work done inside the doors and want to fix the problem once and for all. I've seen some "J" Bead advertised on RV websites, looks like that could work. Any other suggestions?