Van Upgrade: Caddy Maxi Roofbars

We are upgrading Duncan's Caddy Maxi fitting roofbars so he can carry his bike on the roof, along with a single roof box and perhaps a tube to store his fishing rods.
When we converted the van we tried to be careful to fit a smaller solar panel to allow space for the roofbars and bike carrier, so fingers crossed it all fits.
We bought the roof bars from DST Automotive, this version is called Can Auto Turtle.