Would way up the cost of replacing the visor and Pinlock, then compare it with the cost of buying a helmet with a drop down internal sun visor.
I have three helmets, two were £100, the other was £135, all three have drop down sun visors.
Unless of course you're using a helmet that cost a few hundred quid. In that case I would opt for clear only, even if the light smoke is legal (is it daytime only?) and you had an accident at night, you could guarantee the tinted visor would get the blame and make insure void etc etc.
Look at this for a bargain, and a highly rated helmet https://www.helmetcity.co.uk/nolan-n100-5-hilltop-black-red-050/ It's £99, and has a drop down sun visor. Most visor and Pinlock combo's are going to cost you roughly £50 at least.