Thanks to ornerie who pointed me to this...
The Triumph of Maximilian is online!
And its in color too, although the coloring does not date to the 16th c. :( It seems that it was colored in 1765 by Josef Hoeger, so the coloring is not original, as I had originally hoped.
However, in glancing through it, Josef Hoeger did a really good job of coloring it in a fashion that *looks* right. There are a few things that strike me as off, for instance the women's clothing on the last page, but the men look pretty spot on in comparison with other artwork that we know was painted or colored in the 16th c.