[PKM-25]

I dunno man, due to the cost of sheet film and paper, I would not try to go on the cheap, but instead pony up for a decent $200-$300 lens from KEH that has a return policy on it in case the speeds stick. If you pinch pennies on some ok at best lens and then find out the shutter speeds are off and it needs a CLA, what is that time and money worth to you?

To me, the lens *is* the camera, especially when you can just swap boards down the road if you change setups...

And you can find deals now and then, I got a new condition 180mm 5.6 Apo-Symmar for $220 shipped from a guy on Craigslist, it is one of my favorite lenses and works flawless.