I purchased a Thorens 124 MKII turntable and need a tonearm. I have a
collection of old old Seeburg background music records and choose the
Thorens 124 because it plays at 16RPM.

Now I need a tone arm. There seems to be a plentiful supply of SME
3009 tonearms out there. Which is recommended; series I, II, or III?
Also, what would be a good cartridge to use with my tonearm/turntable
set up?

Thanks,

Matt