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So, I'm most of the way through the entire build now, but I wanted to comment and say that for whatever reason, the nut retainer pockets on the cam shafts seem undersized by a lot. The cam gear nuts went right in with no problems (M3 jam nuts) but I had to resort to M2.5 nuts (M2.5 jam nuts would have been better, but I don't have any) and manually widening the pocket. Is this supposed to accept M2.5 jam nuts or did they just get scaled oddly? Other than that, they fit on the shaft nicely and within the head.
Also, I found that the SHCS for attaching the flywheel to the crank shaft assembly used longer than a 25mm screw. It's more like 30mm. I had to take a 35mm and cut it down.