welcome AusVicV8,
nice work on the axles they look a treat, I agree with Blue as that air cleaner/choke goes with the later AC engine and would suit a base without a edger groove or base with an edger groove but without the front or rear axle extentions, so either model 5 series 2 or series 3, the 209K engine I would estamate to be a series 1 and would sit on a base with the front and rear axle extentions and edger groove, as for paint, also as Blue has said each to their own, I had some Dulux tint SS27 in galmet gunmetal hammertone mixed up and once compaired to some original paint I ended up trying to get it matched to the original but it ended up being a bit to yellow looking so I used it to paint my Lathe lol, so start again and can get expensive at $45 a litre, also as mentioned the shades were a darker shade on the early ones, would be good to see some more pics of your other stuff as there are suttle differences in other things as well. cheers.
