Mainly she did it :) [a psychologist pseudo-statistician speaking with admiration of a trained mathematician]. I just found some helpful recent materials on the web by Dickman & Hakulinen, including Stata code. Reproduction of their published estimates perfect.
Admittedly though, I was somewhat bemused to see no replies. A thread of posts all by the same person looks rather pitiful ... But hey, I guess I deserve it, plus what matters is that the tasks has been completed.