I found two versions of Lütgendorff vol. 2 online. Here are some links for your enjoyment.
Original scans, downloadable as PDF:
Text only. Some errors from conversion to text:
Google translations of the above into English. Some weird translation effects, but mostly useable. It takes some time for the whole translation to load. Looks like it starts from the top and works itself down:
If anyone knows where I can find a digital copy of vol 1 or 3, I'm all ears!