Rear spare wheel holder for a 1963 VNB

Hello...

I want to put a spare wheel holder on the rear of my 1963 125 VNB Vespa. The scooter has 10" wheels.

I prefer the designs which hold the wheel lower on the rear of the scooter.

SIP sell 3 different models (90955000, 100, 200) with different shaped support bars primarily for newer models of scooter. 

Which of these would best fit my scooter with the minimum of drilling?

Regards

Richard