Thanks BB, contacted the bloke selling them in eBay and he was more than happy to recreate a sticker for me.
As for my progress - the reel, sole plate, chain cover, handlebar cover, fuel tank and catcher are down at the sandblasters getting all ready for paint. The bloke at the sandblasters has actually restored an sb45 so I'm in good hands.
I found my dad's original manual aswell which I will upload later tonight. I also have the original Kirby-Tecumseh manual which came with the mower.
Thanks everyone for all your help so far, long road ahead but I'm having a ball so far