1) I'm pretty sure /sam
2) can be done with only a rdm or whm support. Some people prefer to bring a dedicated puller.
3) Not quite sure. Probably normal DD atmas.
4) make a macro (/item "Forbidden key" <t>) and spam it.
5) cap azure/pearl only if you want TEs. cap azure/pearl/amber if you want KIs or augmented items. cap azure/pearl/ruby if you want exp/cruor. If you have a dedicated puller, they should be on a job that can easily pull without risk of death (possibly by using PDT gear and/or atmas). If not, get phalanx and whatever other defensive buffs you need to survive before pulling. After pulling, MS > sekka > FC > FC SHOULD kill everything. Retaliation is also very useful for getting tp if more FC are necessary.
The bolded part is incorrect actually,
For gold chest/KI farming build 128 azure 255 pearl and 255 amber. If you cap out azure you'll see an equal if not more amount of blue chests. If you hit 128 it caps the tier and allows you to get time extensions, yet makes it so when the mobs fall over it's gold chest city for the most part.