I did say best offer. $770 is for the rear only on that site.
I just googled them, Back Country/Competitive cyclist actually has them on sale for $980 the pair (which I did not know until just now). I will obviously take less for these if they work for you.
Brand new, never mounted, opened the package to confirm product.
12x100 Centerlock front
12x142 Centerlock rear, Shimano 11/12 speed
Link:
https://www.biketiresdirect.com/product/enve-45-foundation-innerdrive-disc-brake-wheels
Price is best offer. I'm aware the market may be small for this...