[TR] Is a cylinder head rebuild a DIY job?

[sujit roy]

I have a spare stag head that I'll like to fix myself.  I can check it for
being flat at work. I have new valves for it, but do I need special tools to
make them seat properely? I'm in the US, but the head came from a UK car and
I'm not sure if the original valves can tolerate unleaded fuel.

What other things would I need to look out for?

Thanks, Sujit