One View Reports - where to begin for these reports?

Hi All,

I need to come up with some OVRs as below. Any suggestions on the starting point would be highly appreciated:

Supplier by Date ,by Project, by Amount/Date, by Amt/Project, PO by Project, Currency, Currency/Project.

Specifically, Open Orders by Project (Gross, Amount not received) and Open Orders by Suppliers (Sub Total by Project and Gross Amount)

Thank you.