That Voightländer lens looks like it was made for the FE2, almost.
The scalloped focusing ring should be brilliant to use, I prefer that focusing ring to the rubberised rings all of my AI-S lenses have, still the quality is unknown, but promises to be better or at least equal to the lenses available when the FE2 came out.
52mm filter size, same size as just about every reasonably priced Nikkor lens.
9 blades on the aperture, nice.
I have an FE2 and when I travelled with it through Germany I ran a 24mm (f/2.8), 50mm (f/1.8) and 105mm (f/2.5) I did have a 35mm but it was a little too short for my taste, but not wide enough for streetscapes in German villages and towns. Last year I was in Germany and my most used lens out of the 24/50/105 was the 24mm, followed by the 105mm then the 50mm. Four years ago we spent a month in Spain then two months in Germany. The mountians in Spain and the far north in Germany going from the Polish border on the beach, right through to the Danish and Netherlands borders. The 24mm was once again the most used, followed by the 105 with the 50mm the least used. 24mm can encompass a lot of building(s) either vertically or horizontally, the 105 compresses beautifully and is also wonderful for portraits, the 50 is pretty good for general stuff, but too long when I get in close. I did three trips to Germany with 24mm/35mm/105mm and my usage was (in general) 24mm the most, 35mm the next with 105 the least. I really couldn't decide between 35mm or 50mm, I think a 40mm would be ideal for me, but I doubt I would get one as I would only use it sparingly as these days most of my photography is using 4x5" format (10cm x 13cm).
I now run Nikon F3's when travelling, and rarely use the FE2, but my lens choice is the same.
If you can afford it, that Voightländer lens looks terrific; I would certainly get the optional solid screw in lens hood, they keep the rain off, fingers off, as well as direct sunlight off.
At $975 AUD, with the lens hood, it is certainly not cheap.
I think it would handle brilliantly on my F3's
Mick..