Check out the following link and give them a call.
Handguns | Pistols | Revolvers | Guns | Firearms
They aren't real good about keeping their inventory current on their web site and I believe a saw a 4 inch 686 + TALO edition in their showcase when I was in last Sunday. If they have one they'll be perfectly willing to arrange a sale and transfer to a FFL local to you. However, I will warn you that you won't get a bargain basement price, IIRC they had the 686 I saw tagged for 869.00.
As for why nobody will take orders right now, it is because all the distributor's have basically sold out of everything except muzzle loaders and shotguns. Since the manufacturers won't tell their distributors when an item will ship they can't pass that on to the dealers. As a result most dealers won't order any firearm that isn't currently in stock at one of the distributors. Because it's quite likely you could be left hanging for a full year or two and that generates a lot of ticked off customers.
BTW, I just checked the handgun inventory at Sports South, one of the larger distributors. Out of 195 different models of S&W handguns they carry there was exactly
ZERO handguns in their inventory. I suspect if I checked for long guns I would find the same thing. To put it simply, the warehouses nationwide have nothing on their shelves except for dust. If you want any handgun right now you'll have to put in some effort and start calling gun shops where ever you can think of. Because the only way to find a specific model is find one sitting in the display case of a gun shop.