Cool & Rewarding Project 1979 Porsche 928 that runs & drives

A running and driving early body Porsche 928 that would make a great project car.A Porsche collector might know more about the desirability of this example. For some models, minimal options is best. This is a low option example. No sunroof. No electric seats. No cruise control. No door strips. Correct, original phone dial wheels with good tires.
This 928 is a solid car with just a little surface rust where the paint is gone. It starts right up and drives straight. I've driven it around town some and took it out on the Interstate at speed once, without incident. However, the instrument guages do not seem reliable, so I am nervous about longer trips. The temp and fuel gauge move, but the oil pressure and voltmeter do not. The tach does not move and the speedo does not read correctly, at least at interstate speed. It might be accurate in town. Odometer is not moving, so total mileage is unknown, but is higher than the 71,700 that shows.
All lights work.The radio works. It is a replacement that has bluetooth. The original radio is included, but by looking at it, I would be surprised if it works.The power windows work.The windshield wipers work, but the fuse has blown twice. The rear windshield wiper does not work, but I haven't looked into why.The AC and blower do not work. I have not looked into this either.
The owners manual and one key (Red) are included.
The title is free and clear in my name, in my hand. A bill of sale is also included.
Payment requires a $500 deposit via PayPal within 24 hrs of purchase. Balance is due within 3 days via bank to bank wire transfer. Local buyers can bring cash. Obviously, there is no warranty, implied or expressed.