lots of white smoke would usually mean oil or water is getting in the combustion chamber...via the headgasket therefor a new head gasket! it would usually start to get hot- the engine temperature.. after running for 30 mins if its the head gasket but you also may still have lots of oil in your air filter have you looked inside the air filter to see if their is lots of oil?
it may just need running a little longer to clear it out but also be carefull not to get it too hot I have actually seen k seal work wonders if used correctly so maybe you could try that as a temporary fix if all signs point to head gasket!
if I can help you further I am more than happy to
Many thanks again ive got a few days spare to tinker I will keep you posted many thanks again......
thanks for updating me
I look forward to hearing from you again