Ok when taking 1 external person as 4 hunters, wich extra person should i take for heroics? can i get away with it having pets tank? or is it a big nono? Maybe with certain itemisation?

Also, i hear people make tons of money using multibox, but how is this established? Just killing mobs or?

For leveling, would u just do quests as 4 hunter, or grind mobs / instance?

Please some advice :-)