I've always wanted to fly a city built on the back of a giant space sperm.
Try doing something else with the front end to make it look more like a factory. Maybe something like a big docking bay/mooring yard. Cranes, conveyors, shipping containers, cargo manipulation arms. Big airlock doors.
Maybe some big arms on the front, one with a claw within a claw within a claw for grabbing cargo containers or asteroids of various sizes. The other, a drill or asteroid masher or something. Or, maybe a big grinder on the front, the asteriod version of a wood chipper.
Then, the middle is the factory - I don't think it should look like a bunch of individual buildings, though. It should be hull all the way around, like the middle of the current barge.
And then the back, above the engines, another loading dock where finished goods/ships can be taken away.
I would love to see something done with the barge to make it more than just a giant transport - if it could actually take some commodity and turn it into another commodity of higher value over time.