Hi Muskoka, aren't you the lucky one with lots of fun adventures to look forward to.
I have been TI car topping for over 3 years using this frame which sits on my roof rack.
The advantage of this type of rig is that I can still tow the caravan and can attach
an electric winch in my garage and lift the TI up to the ceiling for storage.
I have fitted a frame front and rear which takes some of the weight off the roof racks.
The one at the rear attaches where the safety chains attach. The twin poles at the front
were more complicated as modern vehicles don't have an extended solid chasis.
This also holds the frame down when travelling.
This is the rig loaded.
I'm not suggesting you go to this extreme but it does show what can be done.
There are many other good ideas and information about car topping on this site.
PS I am the odd one who loads their TI with Amas attached. The weight is quite
substantial to lift the nose onto that roller. Must be a nice size van if you can fit
the mast. Post some pictures when you have it set up.
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Cheers, Brian in South Australia
Tandem Island -