I have saved the MEW as PDFs and the MEGA seems to be expensive.
I just wanted a physical book, I could read.>>81472
It is a reprint of some edition selected by Benedikt Kautsky (but I don't know when he did).
It is also very compact (18x4x11cm), so I could read it in all sorts of places.>>81535
Many works go into detail with very specific issues (like the economic importance of Prussian distilleries at that time).
It is certainly useful thing to fall back to.