After market electric window mechanism for bantam

I purchased a 2009 bantam bakkie a year ago, the bakkie came with electric windows. After the driver side mechanism failed, I learned the original owner had the manual mechanism replaced and added after market electric windows.

I contacted the previous owner, he installed it at carradiosystems. Carradiosystems can not supply me with another unit.

Does anyone know where I can purchase one?
This is what it looks like.

Thanks in advance