If you can download http://eclipse.org/
I can sell you my very advanced alcher (lol, advanced alching) for a few mil. Also have a superheater, though I've been messing with the speed and trying to bring its accuracy back up.
Stuff like alching, as long as it's not on for too long and has more than basic randomization (keep in mind, a single, unweighted rand(int) call still develops an easy to see, non-human pattern) then you should be fine. Mine does further things, such as managing a magpie, occasional pauses, and reporting gp-spam sellers and lvl-3 sorc garden bots, all of which make it pretty much impossible to get banned by some silly autoclick detection.