this is how i would do it.
u have 1 main account. and get 2 more accounts.
1 main acc rafed to 2 and use your lvl 100 warri for boost dung.
2 second acc and raf this to a 3 acc.
3 acc is just for raf beacuse u need 3 lvl in range for raf to work. and later u can use the 90 char here to boost 1-2 in dung at low lvl.

and by this u also have 1 free char on main "1" account per 2 chars at 90 at second account.