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I've lost track of bikes that have subscribed to the longer chainstays for larger size trend to keep big tall riders forward of the rear axle.
Aside from the mainstream 2020 Norco Sight and more niche Last, Privateer and Geometron (plus pole for long RC), who else is doing 150-160 travel allmountain/endurolite bikes with proper large person considerations?
515+ reach, 445+ chainstays
Nukeproof mega. 515 reach 450 stays .
YT Jeffsy and I think Santa Cruz Hightower
Orange and Banshee both have the long chainstays but the reach is a bit less.
A bike with less reach but more stack can have more reach in reality because the two interact to get your bars at the right height, so don’t ignore stuff that’s a bit on the short side.
Also some bikes want a 30mm stem to get the steering feeling right, others work better with 50mm, so that makes a difference.
Yep the Orange Stage 6 has an interstellar 469mm rear end.
A friend has one and he says it doesn't feel odd and is very stable and very fast.
I have the older version (a measly 450mm rear) and it does hit than long-travel, not-quite-enduro point that you seem to be after. They pedal incredibly well, are light and very rewarding and engaging to ride.
The Cotic RocketMAX also fits your bill.
I can definitely recommend the Last, really happy with mine. At 6ft4 the XXL feels much more balanced than the Smuggler I had before. In terms of quality of the frame I was very impressed and would happily recommend to anyone.
Depending on where you are you would be welcome to give mine a try. I am in the midlands.
I think the Santa Cruz Megatower has adjustable drop out lengths?