I have the head (taking it to the M/C shop next week). I have the 0.5mm O/S 1.5 pistons, the rods, the crank, and a bunch of other stuff.
What I don't yet have is a good 1.6 TD hydro block for the project, so I'm keeping my eyes open for a good deal on one.
If it flops, it's back to the drawing board. If it works, I put myself in the Land Speed Racing record books.
SteveM.