Well there is no doubt in my mind that the Goldring 1042 is an astonishingly good cartridge (especially on an RB300 arm) with a colossal sound and deep, dark bass that made some budget MC owners wonder why the @#&! they bothered! (I know, I owned the combination for 7 years.)
The Goldring 1042 is around £185 nowadays so perhaps you need to look at the 1012 (no experience of that one, but I am sure it is similar in most respects.)