According to my tracking info, my missing parts will arrive tomorrow. So I'm skipping the frame until then and assembling the next step.
Assembling the main drive system.
Main shaft bearing block.
Main gear and pulley drive system.
Shaft for pinion gear; almost started to assemble this thing up side down. At first glance it looks like it doesn't matter which way it's mounted - but the two holes are on different heights on the shaft. This is also depicted in the manual, but you have to take a close look.
Assembly finished.
The 2nd gear from the bottom (connects to the motor at later stage), has some vertical play in it - even though it has a washer both over and under. I'm gonna google this in a second.
The mesh for the main gear is extremely tight, and you can clearly hear it "burr" when spinning it. This is to be expected, as it will "wear in" with a couple of flights (this is also noted in the manual). I will apply some silicone grease on the main gear to help it "wear in" a bit smoother.
My goal, though ambitious it might be, is to maiden the bird this weekend.