Welcome, Robert! Should be an amazing project if you're using Alphonso's parts/graphics. Biggest problem at that size is display. My 1:40 ISS (very basic graphics) in the downloads section here (real space, manned) has a page on how I built an internal armature to hold the whole thing together - it's directly over people's heads all day, just college students but still ...
Thread on building the Big ISS is here:
The BIG ISS .
Looking forward to seeing how you overcome the challenges!
Yogi