Create a developer portal/APIGEE+ WORDPRESS/

There is an existing developer portal in Drupal that uses APIGEE to give 3rd party developers access to remote API and documentation. The portal is not configured and costumized correctly so for this reason the portal has many problems.The website has its own database but also uses APigee db. My task is to create a website by using cms/probably will be wordpress/, migrate the users and the forum from the existing database and establish connection with the API provider. The idea is not to use the dev portal provided by APIGEE and DRUPAL but just make my own and use some of the things provided by Apigee.

Could tou give me some directions is that possible and where I need to dive in more? Thanks a lot!