I was thinking of putting ODX stage 1 cams in my b16A with JG engine Dynamic dual springs and retainers. But the intake cam is just under a half inch lift, do you think the stock lost motion assembly will do or should I think to invest in a ITR lost motion assembly? Also is there really any thing else I should think about for reving 10'000rpm? I've already balanced the whole drivetrain.

If you're trying to make power above 8000-9000rpm you need a lot better than a stage 1 anything. You must port the head to move air at that speed, have a very high compression, sleeve the block because the open deck will die soon, ignition, you need one that can handle moving and firing that fast.