ALPS 1952 Cadillac Eldorado Covertible 11 1/2"

My wife and I recently found this toy at a Dallas, Texas estate sale. We are looking for any replacement parts, as it is missing the left headlight, Caddy hood emblem, 1 hub cap and the steering wheel is broke(but the horn button was in the box). We are not collectors so the toy will be available soon. We have found out that this is the first model, as GM told them they could not use the "CADILLAC" name so ALPS ended making them into "WADILLAC'S". Any help on finding where we might find some parts would be appreciated. Thanks.