Good Afternoon, Better Sense,
Printing directly onto VC paper, probably with a higher than "normal" filter may produce acceptable results; it won't take much time or money to try it. Better would be printing onto the discontinued Panalure paper, IF you can find any which is still good. Copying with B & W pan film should work also, as long as you recognize that every "generation" normally reduces overall quality a bit. Since your original is 35mm and the print is just a 4 x 6, a 35mm copy will probably serve about as well as one on larger-format film. Here's hoping that you have a glossy or smooth-surface print; otherwise any texture will show up in the copy negative. A copy negative may need to be processed for slightly higher than normal contrast, since prints tend to have a limited contrast range, but that will depend on the original print.
Konical