I solved it!!!!
Just thought I would let everyone know what happened and how I fixed it.
It's all my fault, so what i have learnt is follow the advice of above and check and double check everything before you do something not after!!!
So in trying initially to get the engine to TDC in 1st gear (should have been 6th) it wouldn't rotate so I loosened the cam chain to allow the crank to turn... I stupidly assumed there was too much tension and that was stopping the cams rotating.... the crankshaft spun and cams didnt....nightmare... that put the timing out. Once I realised and tensioned the chain again the valves were fouling and not allowing the cams to turn. So it meant taking Cams off and realigning it all to TDC.... a very dark art and certainly worth working with a friend to get sorted, one of you watching the timing and one rotating the wheel/crank. You need to take the cams off align them put them back together then rotate the engine 3-4 times, check marks again, it aligned do another few rotations of the engine, if its all still lined up you are sorted. If not take cams off, move one tooth then reassemble and repeat until you get it all aligned. Then you can start again from TDC checking valves etc.
All that and my valves are all within tolerance .... what a ball ache.
I hope this helps anyone with fixing a very stupid problem.
"Reality leaves a lot to the imagination"