Thanks for this great mod, as I did not like having quality in everything I would love to play with only modules have quality tiers and this mod is perfect for that.
One suggestion is to hide the recipes from player crafting since they clutter the crafting menu ( currently adds a copy of each module recipe ). I added this line to the function ( hide_from_player_crafting = true, ) and it worked. Just leaving that for you if you want to integrate this idea.