There must be a licensed business that would take the stripped frame instead of destroying it, you may not get much or any money for a stripped frame but there is no need to destroy something that can never be replaced.
The frame and barrel are the most difficult to export stateside, the rest of the parts are in a less restricted category.
There are cheap online club memberships you can buy or you can become an Ontario "resident" to avoid that requirement if you wish to maintain your RPAL and store your firearm at one of the Ontario businesses offering such service.