EDIT: THese are gone now
Cleaning out the soon-to-be-baby-room, I found a pair of forgotten black rack ears for a late-nineties Eden WT-500. I sold the head long ago, but forgot I had these rack ears lying around. I do NOT have the screws.
They will also fit other similar size Eden models. From looking at their online parts store, that includes WT500, WT600, WT800, and the WP100 preamp. I assume (but can't be sure) they would also fit the WT1000, WT1250 or WT1205 models - most likely any WT-series head with a 17" x 3.5" face.
Eden sells these direct for $15 a pair plus $5 shipping. Mine are in excellent condition, I never used 'em, it seems a shame to throw them away, and not worth selling on ebay, so ... Pay for your choice of shipping and they're yours! But again, I don't have the screws that go with them.