An update to this earlier post, I have now completed the first 8 hour period which was broken into two sessions of roughly 3-4 hours. Session one ended at 4 hours 3 minutes with 197k range experience gained, and 367k loot.
Session 2 ended at 3 hours which gave 147k experience, and 177k in profit.
At the end of this complete session I am 75 range with 35% completed of that level, and at the start I was 72 range.
Total xp gained: 344k
Total profit: 544K - 105k for Range Potions = 439K
Total time 7 hours 3 minutes
Will provide another update tomorrow, but I really like this script. It runs flawlessly, and is giving good xp/hr returns with a little bit of profit to top it off. However it would take quite a bit of time to train 99 range using this method.