Guy selling this car has had it basically in storage at his brothers auto repair place for 2 months. He's decided to sell and once we told him we were coming to see it today, he had to run get it. While driving it home he immediately noticed several things wrong with it. The INFL light was on, Speedometer flatlined as well as the RPM gauge. Are any of these connected by any chance? He's having his brother pick it up today and promised to have them fixed by Tues. Concerns?

It's a 90 RS 305 V8