When you say "paper mods" and "already run their cycle" do you mean old RPGA mods for settings like Living Greyhawk, Arcanis,City, etc? Because if that's what you're looking for, you've just hit upon an idea that NEEDS to be jumped on. If you could work out a way of doing it, you could have LOTS of pre-written mods at your fingertips, already pre-scaled. They'd simply need some tweaking and fleshing out.
There has been some debate about this in other venues... Apparently WOTC licenses the mods that are submitted to RPGA and pays the authors, then gets to use them for a two year period. After that, the authors can sell them again to whomever will by them, sans setting specific details. Switch some names around, the locales, and voila! An adventure begging to be published! (This has apparently happened several times.)
RPGA had about 200 mods die last year, simply because they expired, and no one will ever have the opportunity to purchase them as PDF's, download them from anywhere, nothin'... Of course, you'd have to approach each author individually, but hey! It might be just what you're lookin' for!
Coreyartus