Some things became clear now. The vendor is restoring a Theta which had a Kappa gearbox fitted. (with central gearshift os opposed to side shift)
So in fact the 1Z was purchased for the gearbox, and is now fitted with the 'ex Theta' gearbox and engine, while quite a few other bits were also used for the Theta.
The 1Z is thus deprived from it's original components....it also lacks quite a few things. On the plus side the Theta will make a magnificent car.
But I wonder if anyone is ever going to attack the 1Z project. There is quite a bit of stuff, but there is also a lot not there, it will be a very daring project, and certainly not financially viable, even if one got the project for free....