That sounds like a very useful mod for players looking to sell a variety of items in the game. The option to sell most of the productions and products of the base game can definitely make gameplay more convenient and interesting.
The price of €10,000 seems reasonable considering the functionality it provides. It's great that it works with most items in the game, although the exclusion of wood/logs/trees is worth noting for players who may be looking to sell those specifically.
Requiring the Liquid Lime mod as a dependency adds another layer of complexity, so players would need to ensure they have that mod installed to use this "Sell All Here v1.0" mod effectively.
Overall, this mod seems like a valuable addition for players looking to streamline their selling process in the game.
