Since we haven't got a canon rendition of this ship so far, I decided to take inspiration from its depiction in the Heir to the Empire comic.

My Class VI Bulk Freighter is equipped with two laser cannons, each mounted on its own vertical conical turret, and features two single docking tubes. To make the aforementioned laser cannons, I used two reddish-brown LEGO® hand pieces. The docking tubes are marked by the ends of the two horizontal reddish-brown LEGO® cone pieces located in the centre of the freighter. On the starboard and port sides, the freighter sports the same insignia seen in the Heir to the Empire comic. Additionally, the MOC comes with a LEGO® SW Starships Collection-style stand and a printable plaque - you can find those in .png format by clicking on the link embedded in the second .pdf file.

The most interesting thing is that this ship design is so old that dates back to the Old Republic times as it was the Praetorian-Class frigate, the predecessor of the Hammerhead-Class cruiser.

N.B. The MOC scales perfectly with BrickVault's ISD Eviscerator. Also, this MOC has already been uploaded to Rebrickable: https://rebrickable.com/mocs/MOC-228748/BrickRemnant/class-vi-bulk-freighter/#details