DJM2000 Nexus - Rekordbox DJ

For my live setup I use:

• DJM2000 Nexus
• 3x CDJ2000 Nexus
• Rekordbox / USB

I want to add Rekordbox DJ for the additional fx's and sampling. I have looked at the new controllers but they all replace the DJM2000 Nexus with I love also.

Does anybody has an idea how to combine this?

Thnx

Martijn