Before you go to the expense of making a Purchase of a Machine that has been thought of as affordable.
There are Vinyl LP Sales Outlets, that offer Services that will clean a LP in a US Tank. I have pointed this out a few months' past to another member.
Some of these services have machines that have cost a few thousand $$'s. This could be a very good way to see how the Top End Devices used for US Cleaning can improve your LP, that is not achieving a standard of a clean you would like to see.
It should certainly help you decide, if a US Bath is worthwhile pursuing.