Found a neat little product that I thought I would share.
I have some sail track mounted on the camper which is only about 2.5m long and it came with the usual tiny awning 2.5m x 2.5m which doesn't cover much area when camping.
I went and bought a heavy duty tarp 5m x 5m and when I was camping I just drooped it over the camper and the usual pole and ropes, etc. The tarp was rubbing on the camper and would have ripped holes in it after a while so I needed to somehow utilise the original track on the camper.
Found these little gadgets on Ebay which you can run through the track and hook onto your tarp's eyelets at whatever spacing.
Should work a treat!
I also thought you could easily mount a track to your roof rack and use any tarp, any size for a side awning on your 4wd too.
http://www.ebay.com.au/itm/Gutter-Gr...item4cfee8c4d5