Some good questions already have been asked
(MY, color, etc)
I would forget the asking prices.
Come up with, based on what you're going to do to the car, an offering price
for each car.
Let each car owner know whats' up, that you will bid on one car then the other if it doesn't pan out.
Make your offer to each car the amount YOU think they are worth to YOU.
Of course if one is red and the other is not
the the choice would have to be red.
