Be careful when buying non-standard sizes. Many fridges only live less than 10 years (with the exception of some higher-end models that have a reputation for living 20+ years). If you need to replace your fridge in, say, 7 years, you might find that nobody makes a replacement with the unusual dimensions that you require.

The other question is whether you really need a single unit that does it all. From what you are describing, you might be happier with a separate all-fridge column and a freezer column or drawers.

You also mention ice makers. If you don't absolutely need a through-the-door ice maker, try to find an internal icemaker without a water dispenser. Takes up less space, is more energy efficient, has a lot fewer parts that can break, and if it does break, it usually is much easier to repair.

In fact, in our case we are completely forgoing the ice maker in our main kitchen, as we know we only go through about one container of ice per month. We can do this, as our house has another fridge in the in-law unit that does produce ice. And I can just refill a storage container whenever needed. But this is a very specific solution that probably won't work for you.

Having said all of that, maybe start your search by trying to figure out how many cubic feet of storage you actually need for both fridge and freezer, and then narrow it down from there.

Finally, I have a hard time envisioning a kitchen layout that has a 14ft wall with only a single appliance. On the surface of it, that sounds like an inefficient layout. Of course, without actual drawings, it would be impossible to judge that, nor to make suggestions. Maybe you could post a blue print? This forum can be quite creative (albeit also opinionated) on efficient kitchen design.