Is there an option to just use the graphics for AAI Warehouses? Because your mod sprites looks very nice, but SE require AAI-W and additional Warehouses would be redundant...
That's not an option we're interested in supporting. AAI buildings have different sizes, plus mod maintenance becomes a lot more difficult when someone else's changes can break things.
A more sensible change would be for SE to relax the requirement for AAI's warehouses and allow using these instead, if they are functionally similar enough.
There are mods for the mod like: https://mods.factorio.com/mod/rd-warehousing-config That changes the research costs and makes the warehouses compatible with other mods (this one makes it compatible with pyanodons mods)