Ahoy, shoiga...
Have to say, I am in complete agreement with Arlo on this.
Not to say that I would not mess with a mod that was... say, tagged as [WIP], though... Just that I would want to know that the mod maker will still be around, working on the mod to further tweak it & resolve issues that arise with it.
From what I can gather, the originator of the mod.. has gone... AWOL... or silent running.. with no indication of a return. Hopefully, they do.. but, would not advise of staying submerged without coming up for air, shoiga..
Best you can hope for, is that ETR3(SS), has the originators blessings on fixing or completing that mod, in question.

or that anther more knowledgeable modder, can take a look see at it & get it working. 1 or the other.
M. M.