You've got to love that guy's sub 1 Kg wheel set. The standard Birdy rims are strong and only 50g heavier. I found them to be of very high quality and they are drilled 24h. With the new folding tires, you've already made up for the weight difference. But Tune hubs are probably not the way to go, given the high cost. I have an XTR on the back and a Chris King on the front, both bought as open box seconds.