Pedal Order Help :)

Yep that sounds right to me, however theres no harm in mixing it up.

Regarding the comp/Sansamp dilemma, I kinda get what you mean. An overdrive or an amp simulator will often take into account the dynamics of the signal that goes into it, so for instance an overdrive might drive harder when you play harder and less when you play softer. A compressor limits the dynamic range of the signal and i've found sometimes that my overdrives/preamps sound a little dull because of it. What i tend to do is run my compressors after my overdrives but before everything else.

You could try and run the comp at the end of the chain but be aware that the octave might cause it to compress too much when you switch it on, however a) you might like the result and b) you might not notice too much. On the other hand if you are using the sansamp above unity gain (ie to drive a power amp) you might find you are slamming the compressor too hard.

 

And.... listen while swapping them around in every possible order. You may find a sound you like better than the when they are conventional way. Or you may just find a nice useful sound effect.