is it as straight forward as undoing the 10mm bolts uncliping the injectors and pulling the fuel rail off and injectors out or is there another way

Thats the only way.

Pull the injectors and rail out at the same time.

Dont forget the fuel hoses.

yes...leave the injectors still attached to the rail.... only 4 10 mill bolts hold it down... then gently pull the rail towards the throttlebody.. but dont yank it... be gentle...

First pop the boot open and remove the cap and unplug the fuel pump connector. Run the car till it stalls and crank for a few seconds to release fuel pressure.

Theres is four bolts to remove to loosen the fuel rail. Remove the clips that hold the injector onto the rail and the clip for the wiring plug.

Try to pull out all the injectors from the head first then twist/turn each injector from the fuel rail.

Clean out any crap where the injector was. When refitting them put some oil on the o-rings. Push each injector into the head then push the fuel rail onto all the injectors. Attach wiring plugs and clips and tighten the four bolts.

I removed a few little things (like throttle body bracket and brake booster hose, throttle cable, unplugged some wiring) just to make life easier.

Oh and dont forget to plug the fuel pump connector back together or you will be cranking the motor over all day wondering what the hell's wrong with it!!