A commercial operation and they surely need to be able to make a profit so good luck to them. These vintage machines cost a lot to keep in the air. I am researching the Chipmunk for a mag article I am writing and one of the groups I have spoken to have annual maintenance costs of £20,000!.
This is an area where forums such as this can assist. I am sure there are owners of vintage aircraft happy to take a genuinely enthusiastic existing PPL on a brief flight to engage them in vintage flying.
I have access to both a Tiger Moth and a Chipmunk and when they are in the air (not often enough) I am happy to demonstrate the appeal of these great examples of our aviation history if I am planning to fly anyway and have a spare seat. I am sure there are others in a similar position.