Oracle FCCS implementation

Dears,

Good day,

a holding company need to implement Oracle FCCS solution,

the stockholders have a requirement to build the system on the GVs level (credit and debit), that's mean the integration and the system will be customized, and the forms and the rules.

Two have met Two partner provider regarding this implementation, one of them said its not a standard implementation and if there is a way to do that will Couse  There are potential risks.

other company said its doable and it will not effect the system,

I need your advice about the best practice to do this implementation, can we implement the system to be on GVs level or just on balancing level.