This is my first post but am an avid follower of WSleuths. I am fascinated with this case since listening to TLV podcast and following the many threads on WS. I so hope that her family will eventually find out what has happened to MB. They deserve to know.
I am continually taken back to a piece I read online from a book titled "The Secret War Against Dope" (Chapter 6). In June, 1968 a Belguim national by the name of WW (a Restaurateur) arrives from France in US and is surveilled by US Customs after landing by plane in Denver. He is a drug courier and is seen putting his bag (containing heroin) into a public locker at the airport. He is subsequently arrested and found to be part of a "French Connection" drug trafficking group which transferred proceeds through financial institution "First Handover" to a Swiss businessman for laundering. After being caught, he comes clean and in 1969 tells all about the operation resulting in numerous arrests and he seems to be able to "begin a new life".
IMO, this could be our Mr AKA. He could use his many companies to launder his share of drug proceeds. It could explain why he was in Switzerland when he claimed he met MB in late 1960's. With the arrest in US, this delays WW & IK's plan to travel to Australia by a few months. Once in Australia, maybe he realises that if he stays with the name WW, then he is in danger from the traffickers who are trying to track him down. He has to change his name and he travels back to Europe and IW travels back as well. He now has to change his name. He chooses MJR and whether there is a marriage is debatable, but IW returns as IR, married to MJR. Is this the last time the name WW is used by him? I think so. If he is a wanted man by the drug syndicate, then that would explain the number of times he & his wife moved about. The subsequent name changes in Australia then was used to facilitate trying to con vulnerable women and knows how to use personal lockers at airports for ill gotten gains.