I bought my full IFR J model for less about two years ago. The engine times were about 850 hrs since overhaul. It also came with a bunch of spares like a prop, broken seat, run out motor, extra cylinder, main tire, yokes and more. I do have the same transponder that is in the plane you are looking at. It works, but just barely passed the last inspection. In a way I kinda like the levers on my transponder as I could be real quick to reach over flip the two left levers up to 77 to squawk 7700 if the fan quit.
The price seems high. If the owner is negotiable on price, I would look at it. If not, I would keep looking.