Well my original idea was to put only 4 or 6 slots for containers on it with some fancy rear and connections between front and the later.
It's main engines would be somewhat like these. Yet, these are just copypaster rear engines with some upscalling, so the final result might not be an exact copypaste.
Looking at the model from this perspective, I'd also add some roof and pipes providing fuel to the rear engines. (the current roof is kinda unexistant )
And the whole ship after some fun & smoothing. I have no idea but some holes appeared after exporting :c Furthermore solar panels didn't end as pleasing as I wanted them to be, so I'll most likely rework it.
+ the rotation degree seems to be too sharp