what if composite blueprints are not supported?

Me too, to the point that I deconstructed the main ship blueprint inside SE because it looked too complicated for the average player. It is a shame because the whole ship is very impressive.
I just saw his youtube video that showed how to put it together but in space. I had mine still docked on the projector and a bit afraid to let it go because I did not know where to put the ICE for the tanks. Plus he had the video comments restricted, just for that I gave him a thumbs down.

would love to hear or see how you attach front and rear thruster modules,, and loving this ship, just a little confused about the hydrogen thruster hook up