1979 datsun 280 zx 5 speed air conditioning, rust free

1979 Datsun Z-Series Additional Info:

I am a HS auto shop teacher and purchase a variety of cars during the year for the kids to work on. I picked this up because is was so clean. It is absolutely rust free. No rust around any of the windows or fender wells or seams. The doors open and close smoothly.
All the electrical works. Both windows go up and down, turn signals work, horn works, headlights work on high beam and low beam. All the gauges work on the dash. Has no radio.
There are misc parts in the back for a glove box and the center council area. There is no radio; so I never addressed that. I do not let the students work on radios. It is just an open door for problems.
The car starts right up. Looks like the prior owner put in new plug wires, plugs, fuel injectors and shocks. Has a calcium-chloride battery in it with a blue top.
Goes through the gears nicely, brakes work, e brake works. Has brand new tires on it. (just put on)
This is what I see needing attention: No AC, pump turns over uses R12, will need attention. Engine runs real nice, but has a small hesitation "flat spot" on initial depressing of the throttle. EGR is free, I just do not like the flat spot. Engine purrs, no ticks or knocks. Low clutch pedal, have new slave cylinder for it.
The car has an open, clean title.
This is a no reserve auction, so bid accordingly. Call me if you have any questions. I have space to hold the car. It will run and drive to load. As far as going cross county, I wouldn't go there until you drive it some.
Give me a call for more info.
Tim763-245-6507Central Time Zone
All deposits are non refundable, I reserve the right to sell it outright, the car is advertised locally.