WHMCS Auto Provisioning Module Modified

We need a WHMCS auto provisioning module modified so another custom field can be added. The current module consists of two scripts one PHP file which can be found in the WHMCS folders at /clients/modules/servers/newautorelease/[login to view URL] and the other perl script AutoReleaseServer is placed on the server where the account is going to be created. The perl script is run like "perl AutoReleaseServer" and then connects to the WHMCS installation [login to view URL] through port 8080 and an API key. When an account is created we currently have two custom fields in WHMCS which are USERNAME and PASSWORD so these fields are passed to the [login to view URL] script through the [login to view URL] in WHMCS and the AutoReleaseServer perl script and the account is created. ./[login to view URL] USERNAME PASSWORD We want to add another custom field so the [login to view URL] will be like this. ./[login to view URL] USERNAME PASSWORD NEW_CUSTOM_FIELD The new custom field is optional so if the NEW_CUSTOM_FIELD is empty the [login to view URL] is run with just the USERNAME and PASSWORD parameters. We have seven shell scripts on the server which communicate with our WHMCS installation they do various functions but the NEW_CUSTOM_FIELD will only be used with two of the scripts and should be optional. The two shell scripts will be [login to view URL] and [login to view URL] ./[login to view URL] USERNAME PASSWORD NEW_CUSTOM_FIELD ./[login to view URL] USERNAME NEW_CUSTOM_FIELD ./[login to view URL] USERNAME ./[login to view URL] USERNAME PASSWORD ./[login to view URL] USERNAME PASSWORD ./[login to view URL] USERNAME ./[login to view URL] USERNAME The developer should be experienced in Perl, PHP and the WHMCS billing system. We run WHMCS version 5.3 The scripts cannot be tested on our installation so you would need to provide the completed perl and PHP scripts to us so we can run on the servers.