I need a left hand and a right hand.

Thanks for reaching out to us! We'd be happy to help with this. However, I'm afraid this isn't enough information to go off of. Can you open the window and show us a clear photo of the operator's arms? 

Thank you kindly for the photos! Unfortunately, we don't sell a replacement for the ROTO operator assembly shown here. Regrettably, we've seen it before but do not know of an alternative. I am very sorry that we can't be of help with this repair.