Thanks.so the end by the radiation needs to be be able to rotate 360 degrees and carry the solar panels?
Easy. the coding might be a pain. Getting the solar panel to rotate in one plane is easy but for 2 planes not sure
Added the 2 structures at the top.
Not sure about sizes for those modules that connect the parts together. They rectangular or square hatches. It looked like Freedom had a cupola. Not sure about this one?
On the freedom. The docks are just cones. I guess on this they need the docking ring,.... but still cone shape?
Freedom's docking ports on the Dual-Keel concept (1986) were derived from the APAS-75 used during ASTP. The later APAS-89 that was used by the Shuttle was only adopted when Russia joined the project in 1993 iirc