Thank you Arwyn - thought a crowsfoot socket would work - just wasn't sure if the torque values would be the same. consensus seems to be that 90 ft/lbs is sufficient for a retorque.
Now the big question - which I'm sure will elicit a lot of opinion...
Retorque hot or cold? Back off bolts first?
Was going to back off 1 flat cold and retorque cold - but I've read other opinions...