There are a total of 5 Zack Parade Mondbasis Alpha 1 Comics, #26 to #30.

Below is a pdf of Zack Parade #27 (1978) and at the bottom are links to my translated panels of the Journey to the Stone Age comic.

Note: The original art pages are significantly smaller in size (4.75" x 7.5") than the Zack Fortnightly or Zack Box comics and consequently the artwork is not of the same quality. The enlargements on this site therefore exaggerate the inadequacies of drawing at such a small scale. It's also apparent that for this issue the artist did not have Eagle images to trace that were of the proper scale.

PDF file