Got off the phone with Nintendo Australia today, to get an update on my system repair. They're doing everything; repairing both the joycons to fix numerous issues, and replacing the entire base unit to fix the shell cracking, dead pixel, and other woes.
Best of all, because I sent it with a proof of purchase, they're covering the expenses of everything. It's a launch system too, so over two years old. Filing for warranty/repair gave me a form and full postage paid delivery bar code, they're repairing it for free, and the tracked return cost is zero.
Hasn't cost me a cent. Wonderful stuff.