I was roaming the net for BR sources and came up with this doc. Seems to be a well thought & very nicely presented Birthright 5E conversion. It is presented in 5E-like pdg and most importantly it deals with almost everything. Now I don't agree with some parts, and I would definitely want to see what people here believe.

https://www.gmbinder.com/share/-L4h_QHUKh2NeYhgD96A

The guy seems to placed some serious work in it.