I might have just hit a stumbling block in my plan to replace the oil pump and timing change.
RAVE lists a special tool for holding the crankshaft pulley still (LRT-12-080) but this seems to be rather bloody expensive. For the camshaft gear it just says "restrain" but doesn't list a special tool.
Those of you that have done this job at home, what did you use to hold the crank pulley still? I can't remember how I got it off when I replaced the front cover gasket a few years ago!