You can change the amounts of materials in the config.cpp from line 304 to 550. This is where the amounts are set. Example:
class Material1
{
type="Stone";
slot_name="Stones";
quantity=40;
};

I have managed to extract the pbo info and amend the config.cpp to how we want it but how do i repack the pbo???

There are plenty of HowTo in the internet that explain how to create a server mod. I suggest you search for "server mod dayz howto"

Originally posted by Stinkenator / Micha:

There are plenty of HowTo in the internet that explain how to create a server mod. I suggest you search for "server mod dayz howto"

If we modify your config file and upload the "repacked" pbo to our servers, no one will be able to join. The client version (your version) that everyone is downloading will not match the version the server owners have modified and uploaded to there own servers. We would have to re-distribute and sign "our" version to the workshop so that the client version would match the server version.

I get kicked from my own server for the .pbo [containing the config.cpp that was modified] not matching your bikey. Reverting back to your original pbo allows me to join without issue.

I run a hardcore server so the massive amount of logs keeps the cabins from being mass produced with the exception of larger groups which can pump out the required logs easily.