As a general idea I'd treat the game + all add-ons as if it was the whole game itself, and make the wiki pages like usual.
The only exception is that I would put a mention about each entry's "restricted" access on of them.
For example, on the data.raw page, I would just add a small icon with a tooltip:

The icon itself might even be a tiny dedicated image so that we could recognize the required add-on without even hovering it.
Here's another suggestion on how the ownership to a specific add-on might be hinted:

And finally, here is what I have in mind for looking at all the quality-varying stats in the entity descriptions:







 
 
 . From the FFF, a recycler simply gives 25% of the build cost, with some interface for modders in case multiple recipes produce the same item. Based on that I wouldn't mention the recycling results in every info box; maybe a line "Can (not) be recycled" (including a link to the mechanics page), and only make the recycling recipe explicit in the case of multiple production recipes. Overall, that's one line in the info box; I wouldn't introduce a mod tab/checkbox for that. (Although, it could also control the display of the additional qualities, since those come from the same mod.)
. From the FFF, a recycler simply gives 25% of the build cost, with some interface for modders in case multiple recipes produce the same item. Based on that I wouldn't mention the recycling results in every info box; maybe a line "Can (not) be recycled" (including a link to the mechanics page), and only make the recycling recipe explicit in the case of multiple production recipes. Overall, that's one line in the info box; I wouldn't introduce a mod tab/checkbox for that. (Although, it could also control the display of the additional qualities, since those come from the same mod.)


