Sorry to hear about your dramas. My 2c...
Buy some bigger pegs.
Put springs or rubber O rings on your ropes.
You can buy eyelets from Bunnings/ spotlight etc. easy to add more.
Or get a canvas guy to do it. And maybe add some more Velcro.
Maybe buy some better support poles with different connectors if it concerns you.
Those a pretty heavy winds to be in.
As far as the actual camper lifting.., the awning will act as a sail. So some options here...
Take awning down.
Don't camp in a gale force winds.
If you must.. As said above. Think about the direction your camper faces vs. probable wind direction.
You could tie the camper down with chains/ropes and the new bigger pegs you got for the awning.
But a better long term option is to eat more.., way more...
That will add weight to the camper.
It has several other benefits.
1. Food is yum.
2. If you all get huge. It will be warmer in winter, and provide shade in the sun. (In case it's sunny and windy and impractical to use an awning.)
3. Buying food helps farmers.
Edit... And definitely speak to cub for their suggestions.