From what I know, there is trainer available for the DKS version, even widely available for the 1.4.9.32 version. As for the latest patch 1.4.9.65, there is trainer for it from cheat happens, where if I not mistaken, you need to pay for subscription.
As for utilizing your old save from the original ED, too bad there still no way to do that in the DKS. The original ED saves only reusable in the stand alone FOV only, but not in the DKS version.
