Sherpa is a nice bike.
I had not ridden my Sherpa since I built up my Nomad about 3.5 years ago. But I did not strip any parts off of it to use for the Nomad, instead I just put it in storage, hanging from a hook in the ceiling in the basement. I could almost hear it whimpering from neglect every time I walked passed it. (Just joking, I know it is an inanimate object.) So I got it out a few months ago.
It was in storage because with my home layout, I can only store indoors two bikes for immediate use. I am only keeping one 26 inch wheel touring bike handy and I mostly have used the Nomad this year. I mostly use the 26 inch touring bike for riding on unpaved trails. The other bike that I keep handy is a 700c bike more suited for light weight faster riding on pavement (tarmac).
On the Sherpa I did not like the bars that I had on it so I changed out the bars. And I changed one chainring to half step gearing (something that I had done on a different bike) which I had been thinking about for a while. Rode teh Sherpa regularly for a few months before I put it back into storage about a month ago.
I am sure I will use both bikes for future tours, the Nomad for rougher travel with heavy loads or the Sherpa for lighter duty tours on better maintained roadways. It is nice to have a choice of several bikes. And having a couple different touring bikes, one Rohloff and one derailleur has it's merits too.