Seems like something like this could be written using kraken's API and the already existing woocommerce plugin stuff...
The heavy lifting is already done. Just needs a little creative glue.
But, that's been "possible" for a very long time, yet no one has seen fit to leverage it for IX/retail, either.
Bottom line, not even DASH cares about DASH's would-be killer features... So, why should anyone else?
For the moment, I'd use the plugin w/ pubseed from a trezor, and manually dump to kraken. That's as good as you're going to get right now.