I'm up for this - Ehlers does seem one of the most interesting innovators in the field.
For anyone who'd like to get an overview of what he's up to, here's a non-technical seminar where he explains what he feels his approach offers.
https://www.youtube.com/watch?v=BR5pDiPYsnwMy maths is limited, so I won't be able to help much with coding up new indicators, but I'm happy to feed back any insights from our experiments.
A quick question - do we have the latest MESA filters that are in the public domain? If not, is there any way we could get them into Lite-C?
