the timing side mounting shud be original,
kabuli parts are gamble, specially the one which are disassembled and shelved for sale as they are cleaned, waxed polished and repaired, they will give away very soon even if looking good. but the parts still installed on frame have better chances of survival..
servery the market, if u can find a good local made mount having good finishing and soft rubber, try it.
mostly the metal quality is not so good in local mounts and dimensions are slightly out of spec, so if u can find a very good quality cartridge, get it replaced in ur original mount using hydraulic press...