I have used them and they are great additions to an already great kit. But keep in mind that you will not be able to adjust the wing sweep if you uset the "wing glove" part. Most FSM types wouldn't care for moving gimmicks like that anyway.
I can't help you on the the Canada thing. But I hear that the PE parts are becoming hard to find. Espeacially after Hasegawa has discontinued the VF-1 fighter form kits.