1.i created them with different names as you said

! but last names are the same,
I wanted to choose on of that 5 account as my main botter ( guild master trade golds and etc... ) and create a guild with it , and /ginvite other 4 accounts to guild , because i want to farm with 5 account about 8hours a week , when they farmed enough for me , i can put all items in guild , and sell them or do what ever i want to do with them
i heard if you transfer gold and items by Guild , blizzard can't track you about how much gold you gave to any player by guild ...
So , is that okay for these 5 accounts to be in a SAME guild ?
or not , how should i trade items and golds to my main botter ? face to face trade ? CoD ?
2.where should i put these guys to farm for me

? i can't put them all in uldum
any idea ? or guilde about this ?
Any help much appreciated