The correct way to do it is with a bar or 8mm rod across the slots in rear of cams, loosen the cam sprockets, just enough so they rotate, I've never used a new one and never had a problem with the crank bolt, or the cam bolts, just retorque to correct amount it will be fine.
Be aware, though not sure on your year there are two different r/c gaskets so might pay to buy both from ford and take back the wrong one for refund, last one I did was a T reg 2.0 ghia, and despite the reg etc ford supplied the wrong one.
Note carefully, maybe even take a piccie of the aux belt run around ps pump, crank etc, can save time.
tabetha