Very sage David. It's also the case that many of the FSU cameras and lenses, being so inexpensive, will not have had the same care, attention and expense lavished upon them as more valuable things.
I'll await my lens with interest. I have, in my normal fashion, succumbed and bought a Zorki 3 from 1954. I am entirely certain that both lens and camera will have issues that need sorting. Neither set of issues will be in as serious need of sorting as my expenditure on things I don't need!
Film amateur with a few rangefinders - Leica III, M2/M3, Werra 3 and Zeiss Super Ikonta 534/16 medium format.
Apart from that have a Rolleiflex 3.5F, the odd Minolta XD7, Hasselblad 500cm, a Topcon Super D and an Intrepid 5x4 large format (not the half of it but I am clearing them out, honest).
I do all my own black and white developing at home.