RW4 and Ballard Cargo Bags

[Ddaybc]

Has anyone mounted the large basket plus the Ballard Cargo Bags on the rear of their RW4? I received the bags yesterday and discovered they can't be put on the bike when the large basket is installed. I'm very disappointed as I would think Rad would/should have designed something to make it possible to use both items simultaneously. It is a cargo bike after all.
Once it warms up enough to work in my unheated garage I'm going to investigate some method of raising the basket so I can get the top hooks on the cargo frame. I wish Rad already had something designed so it could be done. If someone else has already done it could you share what you did?