Yes, the Vne chart sure is there on the legacy 407, and I would defy anyone with older than a teenager's eyes, or without an auto pilot, to be able to fly the 407 in anything but silky air and actually be able to read the chart placard on the ship. That is why I developed the wag on TAS, which kept me below Vne without constant reference to the chart.
I never figured out a wag for the 530F, but the Vne charts were quite readable.
I just exchanged email with my Bell contact and he again confirmed it was durability reacted to mast bending, but I will see what else I can turn up on this. EN48, my recollection is that the 2,000 fpm climb is related to an aerodynamic reason such as you were told holds for Vne?