The sleeve isn't vital for it to function. Presumably you've checked that the bearing faces all look clean and unpitted before deciding to use it?
You can also use a generic lockring tool for adjustment (of the type that you'd use to fit/remove the lockring on a track hub). You can even bodge the pin-spanner role with the tips of needle-nose pliers if you're happy for it to take lots of trial-and-error.
The sleeve isn't vital for it to function. Presumably you've checked that the bearing faces all look clean and unpitted before deciding to use it?
You can also use a generic lockring tool for adjustment (of the type that you'd use to fit/remove the lockring on a track hub). You can even bodge the pin-spanner role with the tips of needle-nose pliers if you're happy for it to take lots of trial-and-error.