I personally don't think a newer Export is necessarily better than the original Pink, if the original is working properly. However, if you have an original, it is over 20 years old and depending on how it was cared for and stored, you could have a noisy motor for any number of reasons. The original Pink had a wall-wart power supply. Does yours? The good news is that the table has a DC motor (another at-the-time sacriledge along with the light chassis and acrylic platter). I believe Origin Live has a better DC motor that fits, and you have the option of upgrading to their external power supply. In fact, you might try their external supply first with the current motor, which may quiet it considerably.
Phil
Phil