-----
Regarding the "Spain" marked frame pump. Two brands of these I can recall are HETA & Nagusi. The latter being a product line from the former.
Here is a catalogue illustration of HETA models from a 1982 publication and a 1984 one showing the offerings under the Nagusi name. Most of the fittings which came with your Bergie look to hail from the early 1970's and some of the pump models seen here are a decade or more later. One model which would be more contemporaneous with the other components is the HETA Ref. 50821. It looks to be a copy of a REG design.
There are earlier models of HETA pumps which are of a non-framefit design. Will post images as found.
-----