Walk Behind Lawn Mowers

I just bought a nice new rear wheel self-propelled LC221RH a few weeks ago and the third time I used it I ran over a metal pipe. Thought I only bent the blade but when I went to put a new one on I noticed that the part the blade mounts up to was also bent slightly on the ends. The part is called an adapter part # 582890101. I've checked with 5 or 6 parts suppliers and most of them don't even have the part listed yet. Husqvarnapartstore.com says they can't get it for three weeks. Any ideas where I can check?