Trying to figure out what I have. The model number matches nothing I’ve been able to find on other sites. It’s a 1966 model with square axle housings which tells me it’s not a 2000.
I think it's a 2000, Assuming it is a UK build, other variation may have been done for elsewhere? it would have been labeled Dexta, not Super Dexta which was the 3000. The lack of white paint means it is an early one which fits in with your date of 1966. We have a 1965 one still in the family.
Looks nothing like my 1964 Ford 2000/Super Dexta. Mine says Ford 2000 on the side of the hood and Super Dexta on the front of the hood. The air cleaner is right in front of the operator position and the muffler is on the left side. Completely different.