Well I guess i just jinxed myself.
The ptfe tube was buggered, So drilled that out, fitted new one and managed to twist the end off the nozzle leaving the thread in the damn hotend !

So children, tonight's lesson is simple: ALWAYS heat the heatblock before screwing your nozzle in or out !

Right, where do i get replacement heat blocks............
Hmmm - the one on the ctc i3 looks remarkably similiar, I think we have a plan !

That said, think I'm out of 0.5mm nozzles, sheesh lol (well you got to laugh).