I've always wanted a Contaflex. Actually, I've always wanted someone who has a Contaflexe to loan it to me in case it breaks (or when it breaks) and requires a team of engineers to fix it.
I have three, a contaflex ii that I bought based on its looks, outside its glorious, inside is a mess of haze and fungus. A contaflex super in three pieces, body, lens and focusing helicoid, that one may go back together. Once again, bought as working, and it did, briefly, and, saving the day, a stunning super BC. I am in for about £75, ouch! but the super BC is such a beautiful thing and it works so well I kinda don't mind. I also bought a 35mm pro tessar with the common delamination issues. It was very cheap and renders beautifully, so long as I avoid bright lights lol. I sometimes wonder if I should stick the useless but pretty ii back on eBay as "untested", but then unlike some, seemingly, I need my conscience clear so I can sleep at night.