Any experience with toughbook laptops for chart plotter

[Amazing Grace]

I have a 2004 Raymarine C 120 chart plotter networked to radar, depth,speed, wind autopilot on my sailboat. I can't get charts for northern BC and can't update the charts I have for US. Rather than spending the money to replace the electronics, I'm thinking of using what I have and adding a laptop as a chart plotter running Coastal Explorer. I have Coastal Explorer now on a tablet but the screen visibility is poor in the sunlight and not water proof. I've been looking at the Panasonic Toughbook laptops and Dell Rugged outdoor laptops. Has anyone got experience using a rugged laptop as a chartplotter? I'd appreciate any recommendations.