Integrating Purchasing & FI-AP in single report

Hi Friends,

I have got the requirement of getting data from Puchasing & FI-AP into single reports, actually i was told by PM to give the data in single report.

I was given 47 fields & 2 value fields from 8 tables, those are given below

for PURCHASING:(Tables) for FI-AP: (Tables)

EBAN LFA1

EKPO YFBILLREG

EKKO YFEPAYBATCH

MSEG BKPF

MKPF

in those there are two customized tables and the remaining tables are sap defined tables.

can anybody give me the suggestions saying that how to follow, and how to achieve this strategy using generic extraction ?

it's very helpfull for me, if anybody gives step-by-step analysis in doing this.

Regards,

Balaji