oil pump drive shaft bronze gear

I already have the cam so its to late for a cam change. I checked with Mancini and their milodon is 30+ $$ more. I will check with some local speed shops to see if they may stock one. I may be forced to spend the extra money for the Mopar Performance. Pinning the gear to the used shaft is the concern of the engine builder.
Any other suggestions?
Rod

The first retro fit roller cam I bought for my motor didn't have a the intergrated gear on it. So I sent it back (cost me shipping and a restocking fee). Ordered the cam with the intergrated gear on it. I lost $45 bucks 4 hours of my time finding the cam I wanted/needed (was a lot different then from today) and a week in shipping. Just saying.