Only 16 KB instead of 3.2 MB 
Still a lot of extra stuff that could be removed or improved.
I replaced two PolyLine components with Interpolate and the number of surface fragments that fail dropped from 39 to 1.
Much more can be done but I’ll start with that.
- You can do this without Tween Curve, for example, which can cause problems.
- Instead of connecting three wires to Loft it’s better to use Merge to make sure they merge as expected, in the correct sequence.
- etc.