Dodger
I had a look at this one & your red one today when I went to visit your father.
I remember when he brought some stuff for his racer on the back of it, to 'the Boss' when the racer's engine was being rebuilt. I remember the J15 in this with the Weber & the beautifull extractors, & I distinctly remember just how well it went. That was a surprise for me.
It looks like you will be making a good job of it & I will keep my eyes open for more stuff for this model, particularly a pickup bed, if such a thing was ever sold in Australia.

I also have a factory workshop manual for this model, so contact me & we will see what we can do for you.
Looks like modified cars runs in the family. Good one.