Is that 105gms saving over the original parts or just with the Iglidur bushes over your mk1?
Can't remember if you already made a lighter suspension hoop, but that would be a candidate for FCF.
Also maybe the footrest hangars? Although they are not super heavy anyway.
I notice that you are already using alloy top hats on the mountings instead of the heavy steel shoulder bolts, so you could save another few grams with Ti bolts in the top hats unless they already are.
I'm loving how you have reproduced super light replacement OEM parts. a quick spray over with silver and you'd never know..