Velvac makes all kinds of mirrors for the RV industry.
I suggest you have a look there.
Here’s the Velvac mirrors I have.
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Ken and Terry
2018 Sunseeker 2430S-CD, nicely modified and carried by a 2017 Ford E450 Sport
Former Georgetown 330TS owner for 10 years with more mods than I can count, pushed by our 2017 GMC Terrain