Hi,
Sorry for digging up such an old thread, it is just that I am beginning the restoration process of a benotto 3000 and it is remarkably similar to yours.
Can I ask you a few questions and get some advice please?
Are you downtube shifter bosses square or round? Mine are round with a key at the top and I am struggling to work out what shifter configuration to use. Are you able to offer any advice please?