For invention either bosses (GWD1/2 for example), dark beasts, blood barraging muspahs, or just casual slayer if you want. Scythe is the best for the bulk of GWD2, perhaps seismics for Helwyr if you already have them.
The type of dragon scales with your level according to Wiki, not sure what the cutoff is though. Out of curiosity what is/was your combat level when doing the quest?
Moving to Help & Advice where this is better suited. RuneTracker is a tool to track your XP and rank gains and other such statistics. As others have noted though, it has the issue of failing intermittently and on top of that, tends to give the message that there is too much traffic often.
I would think you would be fine if it's just marking your screen, as a human will never click the exact same pixel many times in a row - we're just not capable of that. If it's dragging your mouse to a certain position it would likely spell trouble.
Mod Emily. Used to be a rather active forum mod. I remember her most for trying to respond to people in the Recent Updates forum after an update and for giving info on imminent updates. I always liked her. That would be Mod Emilee actually. Emily the infamous player is a different story...
I don't want to go into any debt, just need something that will get me to and from work for as cheap as possible Is public transport not feasible over there then?