Hi Grumpy, I take your point about the tyres and I will need to change the rear ones anyway as they are rubbing on the chassis. I can get hold of the correct tyres so will probably go down that route and at the same time I may as well change the front ones.
I' ve had some good replies back from Greenfield and it seems that the louvres were put in the bonnet to stop the petrol boiling on the Fuji engines as they got so hot! That would have made for interesting mowing on a hot summer's day! They think that they may have a similar machine to mine in their storage somewhere so are going to have a look for me and take some photos. I've also messaged the guy with the 2 for sale on eBay for some information, hopefully he will get back to me but as I'm not a buyer I'm not holding my breath. I must admit that if I lived in Aus I would seriously think about going for the yellow one!