Hi Dutchie. I thought others, more knowledgeable than I am, would have jumped in to answer your question.

First, how many were made. My only source is the Ross Rifle Story. It indicates a maximum potential production figure of 17,000 Cadets of all types with the number likely somewhat smaller.

As for values...they seem to attract about $450-$500 with some folks able to score better deals than that.