I know the feeling. I've written four separate ICS-205's for this event. One for the ROC (regional interop across multiple P25 systems), one for the county on trunking (two dispatches/PSAPs), one for the county if we start busying out trunking or having sites go offline, helped with the one for auxcom in the sub-region as well as a final backup for ROC/EOC auxcom via a linked 70 cm system.
So far I've got three different IAPs (COG level, County level and then medical region which is multiple COGs).