TI makes a whole bunch of razors, but I was disappointed that their extra hollow grind is now very stiff, so you should consult with a vendor to make sure it is indeed the singing (if they make it all).
ivory may be problematic for canada since they're in france, but there was a guy in italy who bought an ivory set from a vendor in england.
or if you can forgo the singing you can splurge for the carved ivory pair of rodgerses on ebay

now that's something!
your vintage options are somewhat limited by the fact that when full hollow grind became popular, the ivory on razors became rarer. plus an old razor may not be your cup of tea, even if it looks like new.