Axle bearing adjustment

There is also front to back play besides up and down. Green bearings will have the same issue.
I am thinking new housing from Dr. Diff. , but his website says they're out of stock. I emailed him to ask a few questions and haven't heard back.
Any thoughts on finding a good used one? I found one somewhat close to home for $600. A new one from Dr. Diff. Is only about $100 or so more. Both have axles, but the used one has small bolt pattern that I want to keep.