1. As a human the way the script does it is the most efficient, unfortunately the script isn't as fas as a human which causes it not to be as efficient as we'd like it to be.
2. The script should do this, are you using mirror mode?
3. I was never aware of this, good call. Remind me about this.
4. I'll consider adding prayer support.
5. Could you try and record it, to see whenever a sceptre gets dropped what it does? It should make inventory space and pick it up.
As you stated, I do currently not update the script unless it is completely broken, as I'm really busy with my internship for a couple more weeks. You can try to remind me about these points in 4 weeks from now to see what my agenda looks like by then .