Thanks to Nightdiver and tomtomtom123 for their comments.

I ordered a rack from Tern and installed it on my New World Tourist this week.
The Bike Friday quick fold involves folding the rear wheel under the bike, folding the seat mast forward and the removing the handlebars. Without a rear rack the bike would rest on the top of the rear fender, the seatstay ends (which fold with the rear wheel), and the bashguard on the crank. With a rear rack you can rest the quick folded bike on the top of the rack. The rack that came with the bike with the bike was for a 26” wheel bike and the top of the rack was about 6”/15cm above the tire making the bike have a larger than needed folded size.

The Tern cargo rack is well built and quite adjustable making it easy to install on my NWT. The top of the rack is about 4”/10cm lower than the original rack. The rack sides bolt to the rack top so the rack can be disassembled into 3 flat pieces to pack the bike into a suit case.

The pictures show the rack on the unfolded NWT, the folded bike resting on the rear rack top, and the folded bike in the back of my Honda Fit. Much cleaner storage without the chain resting on the floor of the car.