Oh yes, don't doubt you could, you obviously have skills. On the other hand, given the level of raster-based detail in the comic, those would make for fairly large and unwieldy SVGs. ^___^'
[that, or the sacrifice of some detail]
I guess it's great as it is that we have a very generous and thoughtful author, as well a bunch of people ready and willing to either spread the word or help translate it in other languages.
I can vouch [from my workplace] that Adobe Reader on Windows does get terribly annoying, especially since each release seems to get subsequently bloatier. There's nothing like Evince or KPDF, at least not readily available. -.-'
As for that Sauce file, it looks to me (by analyzing the background detail) that he drew over the original PSD/PNG files and thus no SVGs were involved.
So... WYSIWYG....