You might want to check out the Soundsmith cartridges. They are based on the B&O moving iron principle and do not have an interchangeable stylus. You can purchase them in two different compliances.

http://www.needledoctor.com/Soundsmi...category=35414


I liked the sound of the B&O cartridges and this may be what you need. There are benefits to the sound of a cartridge when the stylus is fixed and not replaceable. The generator system has less play and less resonance than a removeable stylus assembly.