I don't know anything about Canada, and little more about most states. That said, in some states, insurers offer "Stated Value" policies -- effectively a version of this is what "car replacement" policies are.
The companies that offer this look at the risk factors, multiply that times the stated value, and out pops the six-month premium.
This is most often used by collectors where the covered vehicle has long disappeared from the standard depreciation chart, or, as with some of the exotics, depreciation is not applicable.
I would wager you can get the insurance, and it's a matter of the assessment of value.