Since the big box is only going to contain starter rule sets...
you can download the 3.0 core rulebook and 3.5 upgrade files & FAQ here.
The cards here might have been tinkered with by fans. I'd need to take a look at them for differences because there's so many different splintered off fans groups and rules versions by now. This set seems to be the originals 'though.
The cards here are very faithful but are missing some of the final/latest releases. Any missing cards from that archive can be pretty much found here.
That ought to do for a start. More links will probably be forthcoming later.