The Licensing on Symantec DLP is divided into modules in order to give the client the possibility to choose what components he needs.
From what you wrote, I understand he needs everything besides Network Prevent.
I think that contacting Symantec would be the best choice because it could be that it would be cheaper to take the entire DLP package instead of component based pricing.
About the Enforce server, it does have a separate license. and keep in mind that the client should provide Oracle license himself or buy one from Symantec, the Oracle license does not come for free as a part of the package.
Kind Regards,
Naor Penso