Outer space structure design

My name is Devin Long, founder of BUILDSPACE an interstellar (outer space) infrastructure company using steel members with 3D concrete printing technology to build (autonomously) buildings in outer space for future colonization. This is truly a fresh startup in its infancy stages.

I am a civil engineer by trade and started this company on my own and have a design concept in mind but am struggling with the rendering. I started on sketchup but am not getting anywhere fast. I have attached the .skp file as a starting point. In addition, a simple word file to help give an idea of what I am seeking for the first step in the design. The design will contain simple steel structural member design and autonomous 3D printing technology.

An NDA will be required to sign, however, further that signature will happily share the files and discuss costs. We will need animation and everything to present later to Space agencies and companies. There is a lot of future work possible. However, the first stages of design is where we are right now and am seeking a freelancer with mechanical knowledge.

Please ask as many questions as possible, if there is a way to communicate, I'll gladly explain real time to clear up any holes.