I just bought an AC surround from LotusGarage a few months ago and they had it in stock for $34.87 plus shipping. The order information is as follows:
07 Panel, heater control mounting SKU:C121U0032F $34.87
I would not reccommend using a used piece since lotus uses huge sheetmetal type screws to attach the control plate to the surround and the screws go into tiny bosses in the plastic that are compromizeed once the screws are installed. Ask me how I know. I have attached a picture of the page from LotusGarage below for reference.