70 Chevelle SS 396 vert ?

[Bruce]

I was contacted by a friend yesterday, concerning a 70 Chevelle SS 396-350HP convertible, he has a chance to buy it and was asking me if I had any idea on what a fair value would be for this car. I told him I would check with you guys here and see what you all think.
His discription is (I have not seen the car myself)
numbers matching,original black bucket int, has had 1 repaint non original color, now red w/ black stripes, was silver/ blk. no rust, auto console,tach dash,P.W. P.L. vigilite monitoring system, am 8-track front and rear speakers,cowl hood, tilt wheel, 60k miles, ss wheels with goodyear wingfoots.Under hood has incorrect hose clamps and battery, but otherwise original.
I was thinking 50-55K, what do you guys think?
Thanks
Bruce