Siezed sump plug

[Dead Eye]

Trying to tilt the engine would be a pretty big job in the grand scheme - pipes would need to come off and disconnect the air box and maybe carbs... plus there's the engine mounts which I had great fun trying to put back on last time round :\

Try a decent fitting spanner first... if access is limited to spanners I've generally found you can link ring spanners together to get a longer lever