You just have to fake it.

No fractal noise generated land model will look like a tectonic plate model, unfortunately, as they will always end up with mountain ranges in the center of land masses (more or less).

This means you either have to accept that all plates are old, or fused plates from previous plate collisions. Some others have done better assessments than this. To get a "real" model you may have to take the FT outlines and put in your own mountains where you think they should be.

-Rob A>