In your second photo, which shows the valve area, you see that the spoke hole left of the valve is offset down and to the right is offset up.
This is the opposite of how most modern rims are made. It's almost universally the other way. That's what's throwing you off. Variance here was once more common and wheelbuilders looked at this orientation at the start of the process, but people who learned recently and/or don't handle vintage parts much are understandably often lulled into skipping that step.
Ordinarily, from the perspective shown in that image, the first hole to the left will be running to the top hub flange (imagining the hub to be in its normal position relative to the rim) and the first hole on the right will be running to the lower. That will be opposite here. Also opposite will be which comes first in each pair of pushing and pulling spokes.
In other words, your "version 2" photo is right, but you're going to do the other flange's spokes in a way where you don't get spokes crossing under the valve. From the blue spoke to the right of the valve, you're going to find the next hole clockwise on the other flange and it will go to the next rim hole after that first blue one.