Thanks Jack

I'll hold onto it for the moment and hope to hear from someone interested. I found another link on this site where a collector has both the green-and-white and white models, among a number of petrol models.

https://www.outdoorking.com.au/forum/ubbthreads.php?ubb=showflat&Number=50569

Hopefully we can dig up a second such collector. Meanwhile it can stay in the garage for as long as my wife can put up with it.

Cheers.