i'm using the purist audio design proteus provectus which is a previous gen cable, but still
sounds musical with good weight and resolution.
haven't heard the new luminist series, but you can get them within your budget if you buy o/s.
they have phono cables in all their ranges. i went with the older range as the sound is more laid-back
which is what i wanted with an ss phono stage.
in your case with exclusive/shelter which is a more laid-back presentation, you could probably benefit with the greater resolution of the luminist series.
before the purist, i was using the synergistic research tricon phono, which was very nice too, and i sold that to mark, so i think he would still be using it perhaps?, and you would have heard many times.
try audio solutions at mascot - they used to sell synergistic, but may have some stock to clear?
otherwise, o/s is your best bet.
both these cable ranges have ground wire built-in.
good luck with your search