Buy all or most of the liverock first
Cycle the liverock - ammonia, nitrite, nitrate so you get a zero ammonia and nitrite (1st cycle)
next add all or most of the invertebrates - Cycle ammonia, nitrite, nitrate (2st cycle much smaller)
next add all or most of the corals - Cycle ammonia, nitrite, nitrate (3rd cycle less than the second)
next add all or most of the fish - Cycle ammonia, nitrite, nitrate (4 th cycle )
the key is to add and have the liverock cycle first, inverts second, corals, third and fish last