Endercon structure HELP pls

I pasted an Enercon (Minecraft story mode) schematic into a world, now I want to make it a natural structure.


the main problems are


    

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    1. its absolutely massive, way too big for a structure block
      2. 

    

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    1. it has a basement under, so I'm afraid it will spawn in the air and the basement will spawn on the surface instead of having the structure on the surface and basement bellow the surface/underground.
      2. 

    

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(I've already tried making it into a nbt using litematica but the whole thing doesn't even render when spawned and even has bugs when pasting the nbt it also has the problem i talked about in point 2.)


Anything helps 😄
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