Wow thank you so much for the warm welcome and post info. After reading through the links and past forums, I believe my Greenfield is about 90% complete and original from the 99.99% previously stated(woops). Although this is a bit of a let down, it is in no way not worth pursuing a full restoration for the Gold anniversary in a few years time (too bad I ain't got the 66 model as I also turn 50.... dang)
When I get used to this site and work out how to load photos, and if possible, video, I will post them.
By the way what a awesome forum and information site. Everyone who asks questions and gets help with information or links, have certainly added great valuable information, all should be congratulated. Even if the confirmed answer is not at a convincing stage of determination of make year and model. Someone who comes along like myself, starts to see the patterns emerge and pick up on the changes in technology and slight variations for each year. This could help to possibly fill in the blanks, if any.
There was a post from Arthur11 some time ago on an early Greenfield. I am really convinced that model is the "Grandaddy" as stated for sure the 1966 (first one). It seems Greenfield made slight improvements and alterations every year (subtle changes)while maintaining the original chassis. I'm also in favour that mine is the 1967 model and the person who has four HD 8s (originally redobobs)has a 2x 1967, 1x 1968,1x 1969, model. 1966 was a full pale-mud green colour, high square hood and large thin wheels(no cut out for fuel tank). 1967 model kept the mud green on the chassis and went to the reddish panels still maintaining the high hood but with a gable style now and cut out now for the fuel tank and the large thin wheels. The 1968 model (Super Swift) went to the red then yellow (probably the same year) and as above. 1969 has gone back to a square shape for the hood and changed the wheels all together. Also looking at the styles of grills and the changes to engaging the cutting pullies year by year, body shape, wheel sizes, etc. As a ex-painter it makes sense as using a yellow primer under coat and then using two top coat colours(1966-1967) was not cost effective. If I had a company selling ride on mowers and the name being "Green"-field, I would have started in a green colour as well. Another point is the decals, red to green, back to red, then green again lol. I'm very keen to load photos and repost old ones to show where I'm coming from and give examples of paint colours and the subtle engineering changes for the forum to scrutinise and deliberate on, confirm if possible and help others who will come along in time to come, if any are interested?.
Once again thank you for the welcome and congratulations on all for contributing to such a fine forum/site.
catch you all later.