Thanks Vass and you are correct - this is the one from Nelson and definitely needs 'work'; which I'm not that worried about.
We have fixed quite a few issues with it already and this is my sons car and he wanted a project. Certainly got it in this car but we are not scared of the work required. Haven't had the cooling issue and we are about to pull the engine to do quite alot of the mechanicals including gaskets and clutch.
Thanks for the concern and hopefully you can help with some advice as we go through our build.