looks like i have blown up my 2.1 zvh engine on my series 2, the oil system is presuirising and its blowing oil out the breather system shitter really only had the car 2 weeks think i got a lemon to be honest

but anyway, i have done a compression test and i am down on compression on cylinder 2. i am going to tear the engine down this week and find out whats failed but whats confusing me is i dont know which head gasket to use to rebuild it, can you recomend me which to buy and where from please, i am new to the ford scene and am a bit unsure where to look.
cheers
ant