There may be light at the end of the tunnel after some discussions with PJME they’ve found some engineers to machine off the crank and and bore a hole to take the pin the fits the other side of the crank and fix the issue once and for all.
Jig has been made to sort the pin machining just waiting for an update on the hole boring then the service should be available to all RG owners, no idea about the price though but I guess its pay it or your bikes scrap, sigh.