One to One Mapping Pricing conditions from RFx Response to ECC PO

Dear Srm Gurus,

I am New to SRM Pricing using IPC. As per my client Requirement we need One to one mapping Pricing Conditions from RFx Response to ECC Purchase Order.We are in classic scenario & Srm 7.0. As standard Net price is triggering to ECC PO but we need RFx Response conditions maintained by Vendor need to trigger in ECC PO as same Conditions,not as net Price.

                                      RFx Response In SRM                             ECC Purchase Order

                                             PBOO  as 100 rs------------------------------->    PBOO  as 100 rs

                                             ZTAX  as   200rs-------------------------------->  ZTAX  as   200rs

                Net Effective Price                   300rs-------------------------------->                  300rs

how can i achieve this Functionality???

Regards,

Ram