If a Vacuum Clamping of the LP is wanted as a wish list and a TT offering this as a built in design is extending beyond the desired budget. There is other options to achieve a Vacuum Clamped LP.
I have had extended use of a loaned Audio Technica AT-666.
It will Clamp and Hold Vacuum for the duration of a side of a LP.
It does take a short process to achieve the Vacuum, but this period can be used in conjunction with a put in place with a Brush or Anti Static Treatment of the LP, so should not be to much addition to a pre play ritual.
The AT-666 when used in a comparison with my selection of Platter Mats, has proved to a worthwhile addition, but is also the one that has produced the leanest presentation out of owned Metal Mats. In hindsight, I wish I had used the AT-666 as a stacked Platter Mat assembly as well to see what else could be extract from it.
A AT-666 in VGC should cost approx' £150, I have bought a Pump for £30 and will eventually acquire the mat to add to my collection.
The Design is available from other TT Brands as well, maybe having been produced by AT and rebranded. I know this has happened with AT Tonearms.
The Link is a few years old and will answer most questions.