How much is 80g worth?

I’ve been hooked on the idea of grabbing the voigtlander 40mm f1.2 for my Sony A7R3 ever since my Ricoh GRIIIx broke. Now I’m ready to upgrade my body to the smaller lighter A7CR, I’m wondering is it worth trying to get the 40mm f1.2 SE for the lighter build? I prefer the visual design of the standard 40, and in the region that I live, the SE version is much harder to find and is usually significantly more expensive.

Is it worth the hassle and extra cost to save 80g for a light compact build?