SAP PI7.31(dual stack) to SAP PO 7.5

Hello Everyone,

Could someone guide me if it wise to move from SAP PI 7.31(dual stack) with only 4 small BPM scenarios to SAP PO(Single stack +BPM+BRM) 7.5?

I do understand that SAP has a Content migration tool to help move dual stack objects to a single stack.

However as I understand to utilize PO 7.5 to its true powers we need to create the I-Flows.

In this case should all the present scenarios should be built again from scratch.

I am currently looking at finding ways of cost reduction and time spent on the upgrade please suggest with the same.