>>2574446Fed bro here with some DIY experience. Just fitted my Fed-5v with a Flektosol IIa (TTL light meter of my own design) today, even. See pic related. It's bulky because it's an early version; I'll shrink it later.
Anyway, fitting the shutter curtain shouldn't be too difficult. The Fed 2 lacks confounders like the slow speed mechanism and lever wind, so it should be quite easy.