I just got a LTM Fed Industar lens from Fedka. It fits well and looks great on my Voightlander Bessa-L, which I got for $110 on the bay like new. I salute your choice to use the Russian body, but if you ever consider an inexpensive backup body with modern meter, it's pretty slick. (I already had an accessory viewfinder with multiple focal lengths, but these are all over the place used.) The Voightlander is so much cheaper than a Leica original in similarly minty condition.