I've been down this path before with my camper 12.
I found that it's not so much the strength of the base so much as it is the crapy hinges that are supplied.
If you place the struts in the correct position, everything should be ok.
The problem with this is the amount of space under the base that you have to sacrafice due to the struts extending across the entire width of the trailer. If you reposition the strust (as I tried) where it limits the amount of space in which they occupy, the force of the struts when shut WILL move the base sidewards and bend the hinges severly. This exact thing happened to mine !
My suggestions would be;
[*] Don't even think of using the struts. I pick up the side of our camper 12 with relative ease, the camper 6 should provide very little weight. All you would have to configure is a pole or something to prop the base open, pretty simple really.
[*]Forget about both hinges and struts and get a full lenght slide out drawer, not too $$$, I'd suggest a 'Drifta' storage box, good quality and designed specifically for this job. http://www.drifta.com.au/StorageBoxes.php
Hope this helps.