Hi,
I'm sorry I've been slow to respond. I'm taking a little break from Factorio modding. I don't want to let people use this art assets in other mods because the asset store I bought them from keeps changing the rules. When I bought them, the rules said I couldn't redistribute the source assets, which I'm not. Then a few years later they changed it to outlaw letting other people make content with them. They just updated the license again to say they are allowed to change the rules at any time, without warning, and that using the assets at all constitutes an agreement.
This feels unfair because my use case was allowed when I bought it. I don't want to open myself more to whatever license changes the store has in mind.
So I really don't feel comfortable sharing them. I'm sorry. I spent over a hundred of hours making these Factorio friendly and now the community can't build upon it.