I'm glad you are keeping these units running. They are nice.
What type of wind sensor package do you have? There are three entirely different firmware and board modifications, only done at the factory/service center (which as you know is out of business) to convert one type to another.
If you get a TWI set for an RMYoung wind head and you have a TWI sensor, it won't work.
Did your console get damaged? Is it partially usable? You can swap one of the three boards out, if you knew where the problem existed, and keep what you already have. Some units may be available for that type of swap,but would take knowledge on opening up the console, undoing the board stack and reassembling.
Dale