From what I can see they are all VC-sports so the cowls (Or as you call them starters) will fit any of them.The cooling cowl with the series 80 sticker has come from another mower as all of them would be series 70's.
The catchers you have (the black ones) were only replacement catchers so once again can go on any of them,however if you were going to restore and or have in a collection you would put the correct colour ones to match the base.
The VC-Sports run from 1973 to 1978 and had two variations on carbys.
I believe the G3 carby models run from 1973 to 1974 and then the G4 carby models run from 1974 till 1978.Engine number should start with 10873 or 10874 so on and so as to what ever year they were made.You almost look like you have all the VC-sports there bar the Purple one and the green one with G4 carby.
Although I keep looking at the one with the 80 series sticker and keep feeling that possibly that one may not be a sports as it has the extra casting there for the setup for an auto drive and I really don't remember the VC-Sports (even the later ones) being on that kind of base.Would like to know the engine number of that one.There was however one that was part of the power-plus series and I'm thinking it is one of those.As they had that exact base.They had a black cowl and it could well have a high compression head on that one.
If you've got parts floating around off those ones and don't have anywhere to put them let me know as I am in search of some bits and pieces off the VC-Sports.
