Its all gone a bit bizarre regarding Denisons these days with 59 Patts going for what 2nd Patt WW2 smocks were selling for around 8 years ago so the chances of getting a WW2 smock now for a "reasonable" price are long gone.
I have been after one for exercise but will probably have to look for a decent copy, I cant justify paying the price of an original when it might get trashed :-S