If you read and interpret that memorandum literally (which is how law always works - letter of the law) - a Jing Gong Thunder Maul is not legally a replica which therefore means parts of it.......... if you follow my drift
I'm sure CBSA will see it in a different light though and it will be a fight........
(I have fought customs before and won - they like to enforce what they think the law SHOULD be rather than what it actually is.......)