So you can listen to the sound from the rig alright, although the delay could be a problem depending on the situations.
Controlling the rig and sending CW from a remote client to the rig can be realized by using a CW Keyboard program described in my previous post.
Currently, only the WPM commands are defined for changing the keying speed, but you can easily add other commands for tuning and adjusting the IF filters, etc.
Of course, a very fancy Graphical User Interface is highly desirable, if one can afford to spend considerable time for that.