Well, I do have the turret finder, and the 85mm Russian fixed finder, but frankly, if you intend to shoot portraits with a 85mm and one of those, better take 5 to 10 shots of every subject, varying the framing - parallax is just impossible to deal with with those unprecise finders (and even more so with a 135mm lens like the J11). You could try to glue the finder to the flash-shoe of the camera (otherwise it is going to wobble all the time - and I'm speaking about 2 different 85mm finders, and 3 different turrets that I have tested on a plethora of FSU cameras, from Kievs to Zorkis to FEDs), and due some careful parallax-testing with the camera back open and a ground glass on the film-rails, and then make markings on the finder for parallax, but that is a lot of work. I finally gave up and bought a Bessa R. With 35mm lenses it is not such a big problem.
Also, prices have gone up a lot for these finders - expect to pay about 50 USD for the turret, and at least 25 for the 35mm finder, only the 85 can be found a little bit cheaper.
Roman