Help with Husky L-77

[BIGBORE577]

I picked up a freebie Husky L-77 that was buried in the basement of my buddies lawnmower shop. It was obviously there for a very long time. It cleaned up really nice, starts and runs strong. However, it's not oiling. I pulled the pump out and it's fine but, I did find the culprit. The gear that fits over the output shaft and then turns the oil pump gear is stripped where it connects to the back of the clutch drum. I think I found the part number for the gear, 501 20 45 01. I know it's an obsolete saw, does anyone think this part might still be available through Husqvarna? If not, where to look or might you have one?
Thanks