I have a rack and a basket on my NWT and dynamo lights. The assembly/disassembly & suitcase management last 1.5h+ for each direction and I thoroughly hate the process. Chain grease is involved. I will take the bike along only if I have a minimum of 2wks at the destination. By contrast Brompton takes minutes, but I have to switch from my regular pack to the Brompton T-bag for everyday luggage.
Mine is a Pocket Llama, a pretty different bike I guess. Does the NWT take that much longer to disassemble? If so, I'd recommend folks look for a Pocket Llama or similar model.