
It has a blown head gasket and a poked clutch

I have not dealt with a blown HG before and i want to know what i need to do to get the engine running primo again. I tried to start it yesterday and it was turning over fine but not firing, i'm pretty sure that it should still run? Anyway, once ive replaced the gasket, what needs doing?
Also, does anyone have any idea why the key might suddenly stop turning in the ignition? I took it out and now it wont turn.
I have tried looking for answers on the interweb, but everything assumes that i am not so n00bish..