Just bought the script and haven't used it enough to give any valid feedback, but I'm very pleased with the way you write scrips -- you take all the painful nonsense out of the equation. I just got the required GP on a F2P account and let it run, and boom, it's doing its job. One thing I've noticed is that it failed to buy tuna (the price offered wasn't high enough), so I had to do it manually by pausing the script. And then it went on to complete Restless ghost, but it didn't drink stamina pots. It's just a tiny thing though, all in all, again, I'm happy your script does all the hard work for me.
P.S. When buying tuna, I banked the items the script had taken out (lumby teles and stamina pot), and then I took out only 1 tab and 1 stamina pot, maybe that had something to do with it? But I think by fixing the tuna buying issue everything's gonna work smoothly again.