If you cannot find the component in Q13.1, means that this component had been drop earlier.
Yes, you will need to create a custom component for this Qsys. But first you need to locate the source files of the cfi in Quartus 5.
Here is the steps to create the custom component https://www.youtube.com/watch?v=v6rhbVABlo8
I think I've found a way to construct my QSys without using the Avalon-MM Tri-state Bridge for ver 13.0sp1. I will use two Generic Tri-state Bridge Controllers to a pin-sharer, then into a Tri-state Conduit Bridge , as per instructions in the Avalon Tri-State Conduit Components User guide. I have no errors now. The Generic Tri-state Bridge controllers have convenient presets for the IDT71V416 SRAM and Legacy AMD 29LV065D Flash.
Thanks for your help! -Aaron