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Makeshift Ammunition Shelves (with railgun shell rack)

You know, I think that might be why I considered it so expensive; I assumed yours would be limited as well on account of prior experience. With it being unlimited, that makes *SO* much more sense to be so high level.

It's possible, but then this mod will be incompatible with any other mods that change the talent tree.
You might like this mod - https://steamproxy.com/sharedfiles/filedetails/?id=2955462544
In this mod, crafting is cheaper, the quantity of shelves on the submarine is limited and crafting requires appropriate talent.

This seems really nice, but the price point seems extremely difficult to justify. Any way to lock it into a Talent upgrade, a la Makeshift Shelf for Assistant?

I believe that "things are in order" must be paid.
When the ammo are on the floor, it fly all over the compartment, sometimes even fly into the next room from any hammerhead attack, mix with each other (especially of different types), etc.
So the price is justified in my opinion.
And there are many other mods that have a minimum price (some - only 1 steel) for crafting similar items.

Nice stuff, but it's too expensive for no reason
It doesn't give you anything, it's just a way to keep your arsenal clean
You can simply place the same amount of ammo on the floor