If you visit
this page, you can find out all about them yourself.
However, I can tell you just from looking at them that the 3rd and 4th ones are pretty late ones, the 3rd one especially so, since it was manufactured in Melbourne. Virtually all wagons (and vans) were manufactured in Adelaide, until very very late in the FC run, when Fishermans Bend obtained a press big enough to make the roof panels. (Previously, only Elizabeth had one of sufficient size to press out the roof of a wagon/van.) BTW the chassis number listed for #3 is its TOP number. The chassis number should look like the others: 8-nnnnn-L or FC-nnnnn-L
The second one is very early, too.
HTH
RET