I have the T1 version 3.
It will be more business travel than personal, from here on the west coast to corp HQ in Boston, so a longer flight and often a stop (most of the nonstops are redeye, which I'm not doing). There will be significant time both in the office there and in the airport/plane/hotel -- maybe I'll give your Bose suggestion a spin and see how it goes. I've actually got a Bose wireless headset that they sent me for my home office, it may well be Quiet Comfort.
My amp at home is not a small footprint -- ModWright LS-100, quite large for a preamp, actually.