That looks very good as a starting point.

Im the demo page I was looking for the BOM and the parts values. Being non-standard this implies limitted applicability in practice.

Did you consider adding constraints to part values?

You'd have to ask the chap who did it! This wasn't mentioned though. I think the code is available in the papers concerned; it would be relatively trivial to add "rounding to nearest available part" to the assessment criteria, I imagine.