Welcome to the forum Vin.
It is great to see you trying to resurrect your Dad's system. I can understand the desire to keep it as he had it. However, I agree that the C11 is a much better Pre amp.
Having said that, I do have a CT17 that I recently bought from the original owner with original box and remote. It is very good condition. I will work a deal with you on it. Send me a PM if you are interested.
Again, welcome,
Ed