As far as i understand it the vrca only covers buying new replicas, owning them is fine (even when "grandfathered") afaik.
Cant say its a side of it i've thought much of given i go regular anyway. Although i imagine as long as you arent waving it around in public it'll be fine.
When it was talked about it coming in it was a bit complicated and I didn't really want to be bothered with it.