Changing config data on working RT2 system

Hi, I’ve inherited a system smoothly running RT2 version 2.1.3 and am
seeking suggestions about updating some configuration data.

Basically, this is the information that has changed:

$rtname=“NAME”;
$Organization = “ORGAN.com”;
$OwnerEmail = ‘OWNER@NAME.com’;
$CorrespondAddress=‘NAME@NAME.com’;
$CommentAddress=‘NAME-comment@NAME.com’;

I need to preserve the ticket data already in the database.

What is the best route to take from this point?

Thanks,
Andrew