Legshield installation on Vespa 150 VBB

Hey guys

Could you help me, I need to find a way how to install the aluminum legshield on Vespa 150 VBB without using the fancy Flange Tool for cca 70EUR, any opinions?

Cheers

i think there are no way. you can try with a rubber hammer and ALOT of works, but you can easy destroy the legshield.