I believe I have found the place to purchase M. J. Elliot's radio adaptations. The stories listed as "The Classic Adventures of Sherlock Holmes" are by M. J. Elliot, while those listed as "The Further Adventures" are original stories by Jim French I believe.
If you check the MP3 download box, then you get a discount of about six dollars, which is quite a deal.
However, the website says that the Holmes and Watson actors are John Patrick Lowrie and Lawrence Albert, so these are not the same as those of the Old Court Radio Theatre Company with Jim Crozier. So I am not sure if I will like them. I'll probably try them out later, while still looking for more versions with Jim Crozier.