No losses Imp Mage high score help

[Arilian]

I cannot imagine how could i kill _every_ enemy on one island if i go in order.
Is there a pre requisit that is a "must have" for impossible max time play?

Debir can be done easily withough going to another island first with alwys provided units, but if I go to Scarlet/Bolo/Rusty Anchor and and want to kill everyone in one run i would be probably in great trouble. Especialy restocking is probably not possible so either sacrifice is a must or a lots of unit type change must happen.

In my last game i have sailed around first (i play inpossible too but i do not care with time - so far) i have found 2 red dragons on the first islands (rusty anchor probably) and the Q emerald, it became a pretty easy "impossible" start