Yeah there is an exemple. ( and you're correctly 2 archer and 1 pirate)
And I forgot about gold to spend
-Full affection
-Max level
-Gold or higher
-You can use 1 CC'ed silver or no-CC gold for each unit material
-You needs some orbs ( 1 orb for gold, 2 orbs for platinum/Sapphire and 3 orbs for black)
-1 awakening spirit ( sell in trading post for 100 demon crystal)
-200k (gold) 250 (platinum), 300k (black)
looks like there :