I'll take the contrarians view with a twist.
I think this sounds like a wonderful opportunity! Wow .... now prove to yourself that it isn't!
In other words, find out exactly what is wrong with the car, not what is right.
A properly stored car is not something that is necessarily bad. Maybe the price is a little high in some areas, but in others, sounds good.
It pays to check it out. Obviously the seller cars enough to change the tires etc so if something is revealed from an inspection, he would most likely agree to some sort of a concession.
Keep us posted,
'03 E320 Wagon-Sold
'95 E320 Wagon-Went to Ex
'93 190E 2.6-Wrecked
'91 300E-Went to Ex
'65 911 Coupe (#302580)