From memory there is a good nut (size 1,2 or 3?) placement 2/3rds up the first wall.
A no-hands rest at the top of the first wall (lean back using your head against a feature in the roof - seriously).
Use your feet well when coming out along the roof flake and you shouldn't pump out. Eyeball the good hold over the lip before commiting to the moves.
Use double ropes (and long roof slings) for zero rope drag issues.
Headwall is easy climbing, just keep your head together.
First move is hardest, for shorties like me.
Most important bit of gear for this climb is a competent photographer!