Also, I've investigated other Konica AR-mount bodies. The FS-1 works well enough, but if (when?) the electronics go, it's a doorstop. I am thinking about a purely mechanical body, despite the larger size of Autoreflex models. Logically, the larger bodies of the Autoreflex models run counter to the pancake profile of the 40, but ...
What say ye?
The T4 is my favorite Konica Body. Has some quirks...they are often found with a dead meter. But are 100% mechanical, so with a hand held meter, your good to go.
Also watch out for a damaged prism. The glass used in the T4 prism was soft and tended to develop problems if left in extreme heat (like in a parked car).
The Shutter in the T4 sounds like it'll break for sure, the next shot. But they are actually very reliable and once you get used to the weird sound. You'll like it.
The T3's are wonderful cameras, too. Built like a tank. Sound better and can double as an camp hammer if you forget yours.
I liked the "S" version of the T3 (split image focus screen) but they are far less common than the plain ground glass (w/frenel) models. 100% mechanical, battery is only for the meter.
I have a nice T3 that I bought from Greg Weber, has had the battery converted to use modern 1.5 volt silver batts. And that works a lot better than the 1.4 volt zinc-air batteries.
So, all of the "T" models, T, T2 and T3 (T2 says "T" but is identified by the addition of a shutter lock surrounding the release) TC and T4 are all 100% mechanical, and all (except the TC) are known to be very reliable.
The FT-1 was the cadilliac of the Konica bodies. It's REALLY nice, but lacks a DOF preview lever. A good working FT-1 would please you, I am sure. The FT-1 is not 100% mechanical, but is scads better made than the FS-1.
I have lot's of Konica glass and have been a dedicated Konica user for many years. The glass is fantastic. Better than all the rest. You just have to 'put up' with the somewhat klunky Konica bodies to use the great glass.
I have owned most of the lenses avail, all were great, except for the 35mm f2.8 and 135mm f2.5. All others....just superb. I would be surprised if you found any others that didn't please, as the quality control on the Hexanon was really good.
Some of the best are:
21mm f2.8
40mm f1.8
50mm f1.7
85mm f1.8
100mm f2.8
135mm f3.2
200mm f3.5
Oh and the 28mm f3.5 is very common, very cheap to obtain and very good!
Cheers, and enjoy!!