Thats where it gets a little confusing. Yes it should but why then does the dvla revert to registering the car as a jan 81 (in my case) even after seeing proof of the VIN showing its an oct 81?
Screenshot taken from the link i posted in my first comment:
If you know when it was built then you have to wait (in my case) till the 1st of october but if i dont know and it was registered 1st jan like on my V5 then thats the date. And as i said, they only seem to want the V5 and the admin fee. If they want a pic of the VIN then the dash one should suffice?
This is my understanding anyway