How have I not seen this for so long. I remember explaining this exact way of doing multiplayer many many versions ago and explaining that in reality it's the only possible way to do it. Glad someones working on turning it into a reality. Unfortunately my skills are only in video/graphic production and asset creating but if you'd like anything like that just give me a pm I'd be happy to help out.
Download it here Just whack a couple of docking ports on the attachment nodes for the best experience. This part is the outcome of this tutorial which is pretty much now finished, minus a couple of layout tweaks. Kerbal To Pro: Modelling with 3ds Max
Texture altered, and at the unity bit of the tutorial. Elaborate? This model is purely because it was simple and because people asked for a tutorial on basic modelling, texturing etc.
Force of habit, I usually like to throw on a dirtmap to break up the texture a little but agree, in this case I'll remove it. Hopefully finishing the tutorial so might have a download soon.
If you're a student there's free versions of Max and Maya at students.autodesk.com There's always the wiki, My tutorial explains a few different styles of modelling.
Model - Done Texture - Done Port to KSP - in progress CFG - WIP Tutorial - Upto porting to KSP If the new part module things come out whilst im still working on this, hopefully we can have a two ended dockable docking module. Crit please. I know there's a little bit of wobble on the Sketchfab, I think it's because I still had the lights in the OBJ file.