Made an Antarctica from NASA map.
Outline is mostly ice...
Probably too many control points.
Planar and extrude work, but are very slow.
Not to scale...
My two cents, from a cartographic point of view:
To create a correct globe in Moi, use a world-map that is "Unprojected" or is in the "Geographic projection". This is a world map with a 2:1 width/height ratio that will produce a correct globe.