Taking cylinder head off hints tips please

Hi I've got a 1980 kz750e
I need to take the head cylinder off to repair an exhaust manifold stud that's broken off , I'd do in place but the frame is in the way .
Can someone advise with the gaskets I will need etc so I can order before please
Also do I need to put the engine in position ie , tdc before starting ?
Thanks for any help

I HIGHLY recommend you stop work on the bike until you have acquired a Kawasaki Service Manual. In it, in the section marked "DISASSEMBLY _ ENGINE INSTALLED" you will notice they remove the cylinder head with the engine still in the frame. Trying to work on these bikes without the manual is a bike like crossing a major highway while wearing a blindfold. Ed

Hi ed thanks for getting back to me.
I have taken your advice, and have this manual on the way. pages.ebay.com/link/?nav=item.view&id=391304477896&alt=web
Also wanted to check that this is the correct gasket set please
pages.ebay.com/link/?nav=item.view&id=252238768984&alt=web
Thanks again