Oil pump shaft question

So I've got some really good responses on someone else's thread, but I'm just running it by several of you guys to get your opinion. I'm almost done rebuilding my LA factory roller motor when a couple of knowledgable guys suggested that I order a hardened pump shaft due to the billet roller cam that I just installed. The pump shaft that came in the motor looked heat treated but looks aren't always what they seem. Do I need to spend 300 bucks on a shaft from hughes or is the factory shaft from that roller motor strong enough? This isn't a full race motor or anything. It's my first roller motor and I don't want it to take a chit fast. Let me know what you guys have experienced and what I absolutely need to do. Thanks