Hello Marc,
within this week I will send you picture of two rare 614 types: A Verkuyl metal 1/72 US Coast Guard and a Schaarschmidt prox. 1/100 out of metal sheet (blue/white prototype).
The US Coast Guard showed in fact interest in the 614 and finally this potential order became the last chance to keep the manufacturing of the plane alive. Verkyul made (?) some models in this livery. Once I was able to get an original Verkuyl USCG decal sheet and used a blue/white model to convert it. So the model is not original, but very close. In fact I have never seen an original USCG 614 model. I am also not sure if the original was metal or resin made.
However, the USCG ordered a different type and this was the end for the 614
The website is very nice, indeed.