RV Repair: Duo thern a/c on horse trailer, living quarters horse trailer, holly holly

Question
I have a Duo Therm, model # 57915531 on my living quarters horse trailer.  My a/c man looked at it after it started making a terrible noise.  He says I need a condensor fan blade and 4 motor mount bushings.  I tried to order online and they say this part is discontinued (the bushings) Is there an alternative part that I can use or maybe someplace I can get the right part.
Thanks for your help and it's very HOT in Louyisiana in the Summer without a/c!
Holly

Answer
Holly, You might try checking at your local R.V. repair shops and see if they happen to have any air conditioners that they have pulled off that you might get the parts off from. Usually places at least places out here in Northern Calif. where I live don't mind if you get parts from things they have pulled off from other coaches. If you are unable to find anything let me know and I will see if I can locate what you need and find a way to get it to you. Thanks, Bill