My usual advice I’m afraid, it will be encouraging an encounter to take place of equipment that has raised an interest and might be seen as a wanted addition to your system.
Select a few of your favourite LP’s and set aside a little time for their cleaning, when done listen to these in their new as close to pristine condition as can be achieved, and assess the impression being made on the home system.
Make a few contacts to see if visits can be arranged to those in possession of devices you have shortlisted and make inroads to see if you able to be offered demonstrations of items.
Take along your newly cleaned LP’s and if there is something new to pick up on and a good impression is being made, usually the improvement on offer will be noticed instantaneously.
The ears are the very best tool for such investigations.
This method of gathering experiences does not require too much of an outlay either.