Are there are older members of the family who may have a copy of this shoved away in a drawer somewhere? Its really worth asking older relatives first if possible before spending out for certs etc.
I have a fair few 'issued at the time of registration' certs that were found in attics, sideboards, kitchen drawers etc of relatives who were older.
I also have many, many more (quite a large box full) of ones that I paid for over many years prior to this recent digital/pdf facility (birth/deaths only for specific years).
Though I'd be thrilled if I'd got them for a lesser price, I don't regret the purchases at all. I got the info I wanted, I was able to go further in my research - well worth it in my book.
Boo