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Shopping around for AT gear sucks. Naxos and Fritschis tour well and are light, but they're also super tall and flex when you turn. Dukes ski really well but, as you have seen personally, aren't very good for actual touring.
It sounds like you'll be going the Naxo/Fritschi route though, so I'll just give you my personal experience there. The Naxos tour better than any other binding on the market, in my opinion. With the pivot in front, it really feels like you are just walking while you skin. The older ones like to blow up, but they have become reasonably durable in the newer models--just keep in mind these are AT bindings, so you won't be landing switch or hucking anything big. I think the biggest cliff I ever hit with my NX21's was maybe 20' into about 18" of blower, and at 160 I felt like that was about as much as I would want to do. I know people jump bigger stuff on them, but I also know that the same people break bindings quite a bit.
Fritschis are going to have a little less slop in the toe because they don't have the funky pivot, but aren't quite as nice to tour in. But it's essentially the same as every other binding on the market in that regard, so no worries there. They are also noticably lighter, and have a simpler toe. Either way you'll end up with a good binding, it's just a matter of deciding which things you want to be slightly better. Binding flex will become a bigger issue with wider skis, I'm at 110 and I don't think I would put Naxos on anything much wider.
As far as skis go, that's really just personal preference. If you thought scratches were too stiff I don't think you would like the ANTs much. I ski with people who tour on everything from foam-core 70mm waisted skis all the way up to 194 XXL's with dukes, and we mostly go the same places...it's just a matter of where you put your priorities.
As for ANTs. I love mine, they're a power ski. You really have to charge and push to get them to deliver but once you do they are sick. I haven't tried them for touring but they seem fairly light for such a big ski. Price wise, I bought mine at Ski and Golf here in Colorado for $360. They are last years model with the tan topsheet but same as this years.
I think the Naxo's would be a sick binding, you could even try that system where you use a regular fixed heel binding with that BCA thing that turns it into a touring setup. Might work good?
Maybe look into the Obsethed, tip rocker, mid fat waist, charging ski, stiff but not a 2x4, ya know?