the assembly manual is what you want for detail, but if you want to see if things are the right shape, just measure diagonals everywhere, like front left tip to rear right tip compared to front right tip to rear left tip ... do end to end, front to first crossmember, to second, to third, then back to first, etc
if one diagonal measurement is much off it's counterpart, it's wracked, if they all match up well, you're ok
Bill
