I agree, getting the complete Kent vinyl set is very hard. Some LPs are very easy to find, others very tough.
But the question is: Are there any collectors out there trying to complete the whole set? I don't think so. And if there are, probably just a few
Or speaking of collectors in general. Are there any collectors of 80s/90s Soul/Northern Soul compilation LPs. Again, I don't think so.
My point is: IMO compilation LPs are completely out of fashion these days. I'm going to repeat myself here. Folks either want OVO or at least a 7" reissue/boot for haptic feeling.