There's a member here by the ID of firefighter or something that does excellent work from what I've seen. I think he also has a website for his sign making. Let me see what I can dig up.
I used marine lettering from https://www.boatus.com/boatgraphics/ with great success mounted on a frosted acrylic sheet. Wide variety of fonts and styles. If it works in a marine environment, it must be good!
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2016 Open Range 319RLS
2015 Ram 2500 Laramie Longhorn Limited 6.7 Diesel