Or you can : Remove roast from packaging, rinse well. Pat completely dry, wrap with 3 layers cheesecloth. Place on a rack on a sheet pan in back of refrigerator, fat side up. After 24 hours, remove, unwrap, discard cheesecloth and wrap with a fresh piece. Place back in refrigerator for 6 to 9 days undisturbed.
Remove roast from refrigerator. Remove cheesecloth, cut away the fat and trim the ends and any discolored parts of roast.
That one method of dry aging. You can google "dry age prime rib" for other directions. You don't need to worry about freezer burn diminishing taste as it will taste better.
Just a thought.