Well thats the majority of the outline done, not sure of the exact dimensions but the largest circle in the middle is 200 diameter.
Next ill be working on the details, then will move to the individual quarters etc and probably the last thing i will do is tackle the landscaping.
If you look in the bottom left of maxis pic you can see a ravine which i plan to extend across the front of the build.
So yeah good progress at the start with dirt structure but thats prob 5% of the work done and the rest will take a long time i imagine

and a lot of revisions to the design.
BTW got fed up with structure planner for designing the build so in the end i went with paint+gridlines and a screenshot as a reference
I have a top down schematic and a side view to see how the arches etc would look and thats about it