Well, tbh. I wouldnt buy a package really. You're going to end up using just one of the bots more than the others anyway, right? Thats just how it ends up, you use the script that gives you the most xp.
However, the best money making bot I'd have to say, would be Kminer from Kminer.org
I am 91 minning (almost 92) on a suicide account that runs 24/7. I have gotten 1-85 in f2p, and I got mems for it 6 days and from banking all the ores I now have 37m or so