I used to buy EX and EX+ only, but took a chance on an F3 in BGN condition. When it arrived I thought it was in excellent condition, but after playing with it for 30 minutes I found the prism was dented on one side. It's cosmetic only as the prism works fine. There's also one minor dent above the film counter, which doesn't seem to cause any issues. So it really is a bargain. I save about 1/3 of the cost to get a fully functional camera with some minor cosmetic issues. Not a bad deal. Next I'll try a BGN lens and see how happy I am with it.
As far as 35mm lenses go I haven't been too fond of the 35mm f/2 AFD, so I'm hesitant to try the MF version (which is reported to be not as good as the AFD). I've used the 35mm f/1.4 Rokinon and found it to be an excellent lens. It's got a pleasant rendering, and it's sharper at f/1.4 than the AFD is at f/2, and by f/5.6 it's sharper than the AFD ever gets. I've got it for sale because I could use the money, but I'm half tempted to keep it.
For the 50mm I have an old f/1.4 that was converted to AI. It works well. Not the sharpest lens wide open, but I really like its image qualities. The 50mm f/1.8 Series E lenses are real bargains, and once stopped down to f/2.8 equal the faster f/1.4 lens. Non of these older lenses are as sharp as the newer G lenses, but those won't work on your camera.