This brings up another pet peeve of mine. There is WAY too much value placed on broadcast sheets.
The same goes for placing less VALUE on a car because of the lack of a sheet. Most people don't even know how to read one and there is little that they tell you that is different about your car in the majority of cases. Yes, they will tell you the trans, colors, options, etc. but so will the fender tag which is SUPPOSED to be on the car.
It is very common to find a broadcast sheet, (build sheet), from a different car then yours. A correct sheet may still be lurking in the seat springs or above the glove box.
GTS.com has a list of missplaced sheets that can be claimed by the car owner with proof of ownership.... It's a free service offered by them. You might concider sending the sheet you found to them in hopes of finding it's way to the correct car.
I have to dissagree about the broadcast sheet not being important. I think it is the most critical document one can possess to verify how a vehicle was equipped. There is no mystery in decodeing them, it's general knowledge availiable to all who seek it. The VIN will supply the very basic codes about a car and the fender tag adds trim and dates plus a few popular options such as radio, bucket seats, etc. (The tags on Lynch road builds will sometimes be almost blank).
I do agree that the absense of a build sheet should not devalue a vehicle, but the presence of one will add validity and, in the case of higher end and rare cars, will contribute to value.
The broadcast sheet should have no place in any judging events asside from documenting the vehicle being judged.