Storage required for installing SEPM 12.1 for 1000 clients

Hi,

I am about to install Symantec Endpoint Protection 12.1 in my environment I need to figure out what will be the storage requirement that we need for this deployment , currently I have 35 GB on C drive and 65 GB in another drive will it be sufficient for storing the Updates and logs for next one year that we will get from the setup with 1000 clients in the environment or should I increase the storage.

Regards

Geekgadget