SX900 Native Voice Engine in Cubase

[HarmonyCore41]

Hey lovely people,

My goal is to take a recorded MIDI song in the keyboard and import it in Cubase to do some tweaks and add extra instruments from sample libraries. However, the MIDI tracks of course uses HalionSonic because the native SX900 voice engine is missing. My question is, I want the MIDI taken from the keyboard to sound like SX900 exactly.  Is there any sort of SX900 plugin to install inside Cubase to take advantage of the SX900 native voices? Or should I record audio from the keyboard instead to achieve this?

Thanks