My parents ordered a 72' SS 454 Chevelle in Late April of 1972. It was delivered to United Chevrolet in Worchester, Massachusetts in late July of 1972. It was traded in there sometime in 1974 by my parents for a 1974 Monte Carlo. (BARF!)
The car was Mulsane Blue - stripe delete, LS5 454, TH400, White bench seat interior, PS, PDB, 3.31 posi, domed hood - not cowl induction, F41 suspension, AM/FM radio, HD cooling, HD battery, tinted glass, std SS dash - no tach, std SS steering wheel. I gathered these details based on their memories of the car. They didn't take many pictures, the picture with the stripe and custom wheels represents how it would have looked when traded in. It also had bucket seats in it from a wrecked car.
I do not have the VIN #, that will be the biggest stumbling block.