Well took head off again today, due to water loss, and the head gasket I got off eBay was leaking like a sieve. So rechecked head and block for flatness and all ok.
Took a trip to west 4x4 got a new gasket bolted her back together and everything is spot on.
Fired up straight away.
So moral of the story is don't buy crap gaskets off eBay.
Thanks to everyone for all the help and suggestions.
Hopefully one day I will be able to help all of you with something.