Are there any cables available to port HDMI to Displayport (And possibly carry audio?)

Short answer: No.

Long answer:

At least at displayport.org it writes explicitly that there is no such a device. Note that there are several devices for the other direction (DisplayPort device/output, HDMI monitor/input), but they do not work the other way around. I personally tried to connect my laptop (HDMI) with a monitor (Displayport) using this cable. There was simply no image.

Anyhow, I don't think that it is technically impossible to build such an adapter. I am courious myself why you can't buy such a device and if the information at displayport.org is acutally (still?) correct.