For those of you on the hunt for the Plat Mercs, a few sizes just dropped. Price came out to slightly under $220 shipped for me.
Darkside in SF got them a couple days ago and sold out within a day. I know that some Undefeated Locations got them instore, but no phone orders. I think the expected drop date is the first part of October.
You'll probably have a hard time finding them for $400. I think I've seen a couple size 12s in both the grey and obsidian colors for right around $450. I think there's a guy on the flyknit seller FB page that has both colors up for $440/each.
Prices seem to depend on the size. There seems to be more bigger sizes for sale, and slightly cheaper. 8.5 - 9.5 is slim pickings. Obsidian and Grey are floating around for $550-$650. The blacks, forget about it, at least $900 for slightly used.
I'm selling a brand new Saint Laurent Slim-Fit Wool Peacoat. This is from the FW14 lne. The price is shipped for the US, International shipping would be an additional $55 via USPS Express International.
The measurements according to Mr. Porter:
If you have any questions, feel free to ask.