On my Thorens TD166 BC MkII have an elderly Ortofon X3 MC cartridge fitted on to a Mayware arm. My amplifier is an Aura VA100 and the speakers are Linn Index. I either need to replace the cartridge or have the stylus re-tipped, which is going to cost me an arm and a leg if I stick with the X3 MC. Can anyone suggest another cartridge that might give me good enough audio quality but won't break the bank?