I have an adjustable oiler “Kit” you can buy.
The issue is that you need a different clutch drum (besides the worm gear notch it’s deeper), the worm gear, the sleeve and washer, and the pump.
Totally not worth the swap IMHO. You’re only idling at 3000 rpm. So 1/3-1/4 running rpm. It’s not a lot of wasted oil, but it’s your call. I used to feel the need for the PRO oiler as well, but it makes little real world difference.
As for your seal, if it’s leaking around the edge where it meets the case, you could add some sealant and pull a vacuum. It will usually pull enough in to seal it off. Wait a day and run it.