Thanks your your comments y’all
In the middle of another modeling spree now, so I’ll be brief:
Q&A
Scary viewport FPS
Luckily it only hits that low when everything is visible of course. Since the models are segmented, I can work comfortably with each part in a separate file and then merge it together once each bit is completed. The only painful phase is the full scene arrangement. It takes quite some time just to move a light actually…
The houses - - - next time I will put them in upside down me thinks…
Finding time - - - easy: I don’t have a dayjob
At least not this week. Just been a fulltime market analyst for the past four weeks… It comes and goes. Right now I consider this to be speculative work, since I desperately need some new hardware, so I simply put in as much time as I can 
How many nodes - - - First of all there are two segments left to build - the CPU segment (in the works as we speak) and on top of that there will be a cooling tower. Then, grand total, guess there will be three or four of these nodes visible in the final image, at different distances from the camera. Luckily they are all floating in the scene, so it’s going to be a no-brainer to render each in a separate pass… Then I’ve got this minor idea in the back of my head for an optional crashed node somewhere on the ground… maybe the fluffians managed to bring it down somehow.