RHW Interchange Challenge Idea

[Tubthumper 499]

Well, in the process of creating some RHW interchanges I thought of an interesting idea.  Maybe only interesting as it will serve my own desires 

Looking through the forum topic "show us your interchanges" for different inspiration or ideas I thought - why not have a challenge?   Each month someone picks a different interchange somewhere, and people can try to create a NAM interchange as close as possible to it?  Could also benefit people trying to find new ways to do interchanges...just an idea and I don't know if something similar was tried in the past.. 

The interchange that got me thinking about it was my attempt to create this behemoth 

Oddly enough, after numerous attempts, I was just dissatisfied by my attempts.

[Tubthumper 499]

Well, let's do it then - see the 470-335-Highway 75 interchange in Topeka, KS!  I wonder who can create this.