who would ever know it did not, and who would prove it didnt. Only the engine and shell have identification all other parts are generic.

Just look how many bare shells with ID are sold on this site alone, they go on to live as again as the original car with no other parts from the original bar the shell

There are many many 3drs/500s/Saffs and escos owned by people on here, sold by people on here and registered with the RSOC that have done exactly as I have described, and all done quite openly, if you added to this the shells using ID from scrapped cars where only the tags were sold on you are talking literally hundreds of cosworths over the years and there is nothing the RSOC can do to prevent those cars being registered with the club, as their stance is if a cars VIN number is one from the batch of RS cars produced by Ford then it is an RS regardless of any subsequent adverse history.

In relation to this car, and its current non standard condition and unregistered it is always going to be subject to negative comments and very very hard to shift unless sold cheaper than the sum value of its parts, but I guarantee either as a whole car with another ID or in component form it will live on for many years and will no doubt end up as an RSOC registered car at some point or form a major part of one and people will be none the wiser in time.