I have a choice of these two. I might get both but anyway which do you think is the best one. They are supposed to be NOS. I never play, nor do I have any, 78's, I don't even have a TT that spins at 78 rpm. I am leaning towards the single play version. Would there be an issue with finding needle replacements for one or both of these? I do have some old heavy tonearms so finding a good home for them is not a problem. Any advice?