I agree that there is no percentage in removing the intake just to remove the head - however, if your car is right-hand drive (difficult for me to even guess when as a 'big,big time poster' your profile is so comprehensively filled out in invisible ink!), then some of exhaust header bolts can be tricky to get to as the steering box is very close (and its also best to remove the steering box heatshield for access).
A tricky part comes when replacing the head with intake on, simply because the weight and bulk makes it quite awkward to line up everything when you are leaning over the engine bay (unless you happen to be superman), therefore a hoist is recommended to lower/manoeuvre it carefully - I was not so careful as I forgot to remove the oil dipstick first, and my small mis-judgement made the head snap off the plastic ring-pull of the dipstick, so had to get a new one - something that few people have a spare one of it seems ! - oh well
Oh and I fitted new head bolts and paid very careful attention to the tightening sequences in the Bentley with respect to rotational angles and final torques etc.
So far, 17k miles later all is still just fine![]()