Rainbow Theatre Company audio books?

Has anyone heard of a set of Roald Dahl audio books from the Rainbow Theatre Company? I received the following request from a site visitor named Blake:

i am looking for a specific series of Roald Dahl audiobooks. They were produced in 1983 i believe by the Rainbow Theatre company and included dramatized versions of Fantastic Mr Fox, James and the Giant Peach, and Charlie and the Chocolate factory. I have found the latter on Youtube. The two others were on Youtube too several years ago, but have since been taken down. I would like to procure my own copies of each but I have hit a brick wall with my own internet research. I was curious whether you or anyone in your fan community had them, or maybe even some advice on where I could go looking

any help would be very much appreciated

If you have any information on these, please leave a comment or contact me and I’ll put you in touch with Blake!