First of all - let me wish you the best of luck in obtaining your manastone as you seem very determined to obtain it. As to your questions;
1) this will always be a highly sought after item so I don't think waiting a month or two will diminish the work required at the camp.
2) This is RNG based, several people have posted about day(s) long before seeing a manastone drop I believe there's one forum post claiming 107 hours.
3) Not that im aware of.
4) Again RNG
You asked for advice and here it is, either obtain an adderoll prescription from your doctor or account share like the majority of the community is doing right now otherwise its just a detriment to your heath - there's zero REASONABLE way to camp these items by yourself currently. I've seen people log off briefly, come back speaking different languages casting different spells sitting in different spots - all while maintaining their spot on the "list" my best advice is to find a trusted friend and park yourself there 24/7.
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