Fusion PPM coexistence scenarion - How to implement if customer is already in EBS R12 finance and wa

Hello Experts,

                I am in situation where customer is already finance application on EBS R12.1.3 and needs to implement fusion PPM cloud application using co-existence stratergy.

Please guide me whether it is possible? If yes then how it is possible? again if it is possible customer is also interested in implementing Primavera 6 with fusion PPM application then is there out of box integration available in fusion PPM similar like MSP integration? If yes then will it be like just mapping or do techical code is required to write?

Please help.

Thanks

Uday