4x4 fenders and bed for 1983 mazda?

has anyone ever heard of mazda making a 4x4 fender for a 83 mazda? or have a pic of them im just curious to see how they would look i have a shot of my bed and fenders and i think they look good but im curious to see if a 4x4 fender would look better, i know most peopl use them for big wheels but biggest ima go on my tiny truck is some 18s. 20s would look way to big for my shit.
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you should be able to put a 18" wheel in those wheel wells, from what i understand the older mazda rears are a couple inches shorter than the newer ones

with some work you can fit 20s all the way around on there here is a guy i knows truck with 20s.