Anybody know anything about these parts work wagons?

I don't know about them but they look really nicely done ! Probably well worth picking up.

The only one I have is the Dodge Rural which is a badge engineered Hillman Avenger.  Also sold here in VERY RARE numbers as the Plymouth Cricket.  A Rootes Group product when Rootes was owned by Chrysler.

I have this Peugeot.  I bought it second hand from an ebay seller in Australia about 5 years ago but know nothing about the manufacturer.

I know nothing about them but they all look interesting.

The Peugeot was in an Argentine partworks, which means prob in many others!

https://www.hobbydb.com/marketplaces/hobbydb/catalog_items/peugeot-404-rural-1963

and the Dodge Rural - hobbyDB

Part of a collection of "Autos inolvidables" ("Unforgettable cars") produced by Salvat in Argentina. In addition to cars they apparently did a small series of wagons, including  the ones shown above. Not sure if it was a separate mini-series or part of the main run. 

They also did an interesting series of delivery and service vehicles which might be of interest to some folks.

You can see more of them on this website:

Vehículos de reparto y servicio

Editorial Salvat are a partwork and collectibles outfit based in Spain and South America and I think they are linked to Altaya/DeAgostini. The models are all done by Ixo.

I haven't found a site offering them all in one place but they can be picked up here and there online - some very cheaply

but of course there are always gougers on eBay asking silly prices for these "rarities".

And here is another partworks from Argentina,  a 1958 Kaiser Carabela which was based on the US Kaiser Manhattan after production ceased in the USA.  It used only the four door version and with the later type wrap around rear window. Still somewhat hampered by the Continental 226 cubic inch side valve six cylinder engine also used as fork truck engine!  Produced up to 1962 but without the Hydromatic transmission or the USA optional supercharger.  Shown here with the Esval two door Kaiser Manhattan.   And Brooklin has their versions of the Manhattan as well.

Check out this site. They list many of the parts works for 1/43 and many other things in addition to model cars. You can also see the countries they're marketed to. Note they don't sell anything.  Colecciones Chéveres