I like the idea of being able to disengage the front in case of CV problems. That way I can still drive it.
Nope, don't work that way. The hubs are at the end of the line. If a CV goes bad it will still be spinning with the hub dis-engaged. The tires just won't be driven. In order for it to work you would have to have a TOD disconnect switch, a JDM transfer case or a real transfer case so you can dis-engage the drive shaft.
The VX as it is with manual hubs dis-engaged the drive shaft and axle shafts are still spinning.