I aligned most of the vertices to similar heights and z positions where it made sense using Component Editor, doubt it had a serious impact to memory.
I mirrored it across the z axis for a symmetrical model and combined it with the original, now I want to delete the edge down the middle or combine the faces into one face so it can be smoothed.
I was unable to properly combine the faces with any of the tools suggested by people in similar posts, and the delete edge function deletes more that the edge, it totally disconnects the two halves.
