Hi, good suggestion!
I just realized: there is a quick hack that lets you do that already (on Windows; it does not work on Mac so far). Connect your Quest by cable and start SideQuest (it is the program you used during installation of VR Sketch on the Quest). Pick the icon that says “Run ADB commands” among the top-right icons, then “Custom command”. The command to run is:
forward tcp:17352 tcp:17352
You can later check if the “forward” is still running (it stops if you remove the cable, for example), by running the command
forward --list
As long as the forward is running, in SketchUp, choose “Send to VR on this PC” (not “on Oculus Quest”!) and it should work directly. It doesn’t actually start VR Sketch on the PC because it thinks there is already one—because of the forward command above. Later, if you remove the cable, then both sides will report you as disconnected but you can continue to view the model and use the teleporter.