Jagex laucher can be patched to either HDOS or Runelite. Installing HDOS is easier if you'd like to still be able to use Runelite. But either or can be used. Need to open Osbot patch either or, Open Jagex laucher, and Launch whichever you patch with Osbot. When you launch Osbot login will launch. Login an happy botting.
Breaks are logged either by your osbot schedule or if script has already the capability to set them. Pins I don't believe there is a setting for jagex accounts to use them so far. But in future updates they could possibly add that to the launcher for the jagex accounts. You will have to disable your break or set it each time your breaks are over/restarting launch.
When you log onto osbot you need to patch runelite to osbot once thats done you you open launcher with runelite and login to osbot done should work if not try patching top hdos
The reason it's going to be expensive, everything is based on gp/hr. Pk scripts are indefinitely going to make the price rise as the gp/hr rises exponentially. But you already knew that, or you wouldn't be asking for a script for it. There are plenty of facts pointing towards the price for something like this costing devastatingly high. It is also a lot of other things that can make the price go up like the functions and if you want it to be updated working properly. Other then just wanting a ahk I have found AHK's but they still are on a monthly plan for functions that are compromised. If you were serious about it probably join competitive pking clan and buy from the mates in there. Best of luck. . .