Hi Dennis. Welcome to Geekhack.
K70s are wonderful if you ask me. I know others would disagree. I did the same thing, used a few K70s for years and years and, and then I read into what else there was, got some retro boards, and now there's no escape. I have only heard good things about Durgod so far. What switches have you got in them? I just ordered a 65% and TKL of the Heavy Metal Keyboard myself.
I often wish I played games more again myself.