Hi orys, there were lots of P.K.S. all over the continent in the 80’s.
I.I.R.C. they had mainly yellow Volvos pulling fridges and I think that they were usually double manned. I saw them lots of times in Dover and I have a feeling that I have seen some photos posted by Trucker Ash.
Try looking in the Truckin in the 80’s thread on page two of this forum.
Good luck, Steve.