Honestly, I think if we find some stakes to nail in our slant legs, we should be fine (and also don't pay for a really cheap slant leg)... I think the one I'm gonna get is this one:

http://www.amazon.com/dp/B00L5ZUL7Q/ref=twister_B00XWDM67W?_encoding=UTF8&psc=1

Also, at least in my situation, I only need to fit 2 cots and a small tent, so I should have enough room even if it is a true 8x8. The reviews on the one above say it is a true 10x10; however, there is like one person who says it's an 8.5 by 8.5... which should be fine, for the price.