I always say that the best way to appreciate the work is to just try and do a simple one by own means

.
Sometimes, we tend to assume that for the person that did the work it was easy-peasy ("yeah, he already knew to model, and to texture and all. He probably did it over a couple of weekends")

. But I have seen it already with AC: lots of people gave modding a first try with Assetto Corsa. Even learned to model with same ocassion. And with enough work, I have seen extraordinary results.
As a reference, some of the best modded tracks out there clock around 1000 man-hours work.
Anyway, this is just another point of view. Decision on how to release the final product remains with the author.
Have fun (creating or simply enjoying)
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