All it takes is one incompetent camera repair person and your IQ (bad news when I have to read a dozen posts to figure out what that means) on a Super Ikonta goes straight to hell. All ya have to do is be off by one tooth on the focus mechanism. And 80 years can have a lot of different hands on that camera.
That Tessar should give you great results front cell focus or not.
Personally to the OP, I would choose the Voigtlander.
tim in sanjose