This is what you're looking for: http://www.seacharger.com/

Made it from Cali to Hawaii, and then started on to NZ before it got crushed by something.

Still, fair distance to cover. And this was a first attempt. I'd bet there are plenty of these things out there moving drugs around.

He mentions receive contacts from drug smugglers via the website.

Edit: Looks like they've continued on building components: https://www.bluetrailengineering.com/