How to archive "Snowfall" + other new multimedia journalism?

I’m a science journalist and very interested in the new kind of multimedia journalism that was pioneered by New York Times with its “Snowfall”-Feature

and meanwhile published by other “newspapers” like the Guardian with its “Firestorm”: … mes-family

or recently (today) by ZEIT Online with its 100 Years of “Tour de France”.

Typically there are – besides text – videos, animations, interactive Features and so on.

I would like to collect those specials for offline use.

What would be the best way of doing this with DTPO?

Webarchive oder Download the whole thing with DTPO’s Download Tool? Which parameters do I have to configure?