Gear train installation question

After looking through the rules on installing gears, I still had one question: does it matter what order the gears need to be placed on in their individual trains? I know that you need to start the rotors in order from 1 to 4, but does it matter where you put the gears on each individual gear train before they are spinning?

For example, on rotor 2, could you put the first gear on the peg nearest the rotor itself, or do you have to put it on the peg with the crank?

There are no rules dictating the order in the gear train in which gears are to be placed.

Ah, Thank you!