Hey,
(just between you and me, it's delightful to see an American here. Most sentences uttered by people here, who are usually from countries like Zimbabwe or India, are not-understandable collections of words).
I think I understand what you need, and I think all the other freelancers are bidding WAY too high. 4000 dollars for what you want is complete bullshit. I'm just going to tell you what I understood you wanted, and you say whether or not that's what you meant(I find this helps avoid confusion):.
-You want a script that asks you to specify a folder. From that folder, it randomly takes three audiofiles
-It then starts up Ableton Live, imports the files, lays them on top of each other, and exports them to a .aiff file
OR: -It then lays the audiofiles on top of eachother, in a similair way to Ableton Live, and exports them to an .aiff file(this is not exactly what you described, but it produces the same result, and is much less prone to bugs such as when you upgrade to a new version of Ableton. You can also use it on computers that don't have Ableton, this way)
-It then takes random Wikipedia articles, and adds the titles to the file as RIFF("metadata")
Please let me know if I misunderstood anything. I can help you with this, so how about you select *me* as your freelancer?
Looking forward to working with you!