OK guys, 2 speed wipers are finally all sorted.
Here are the cable wiper pickies as promised.
The first one is how it all looks prior to being fitted to the car
(after half a dozen trial fits of corse)

I used the original FB wiper pivot housing as a sleeve for the
new wiper shafts to go through. This just had to have the outer
bush removed and the inner part of the housing shortened. This
way they fit nicely into the original position and don't appear that
different to original, except for only having a smaller nut on the
outside as well as the original nut

The wiper motor is mounted up under the dash on the passenger
side beside the glove box. This just needed a bracket welding on
for the motor to mount to.

The pipe that links the left wiper to the right one runs over the top
of the plenum chamber where the fresh air comes into the car. This
was a tight fit

and I ended up having to lift the center of the top
of the dash a fly shit (about 3 to 4 mm). Looking at the top of the dash
you can't even tell its been lifted.

All in all it was pretty easy,

the kit comes with all wiring and switch,
so all you have to do is hook up power and earth. The pipes that
the flex cable runs through just have to be shortenen and reflanged
to suit the length you need.
O yeh, I did have to do a small modification to the demist ducts as
they also were a bit tight. Nothing a hit with the grinder in a few places didn't fix.
Next and last to fit up is seatbelts.
Cheers
Mal