I would really like to see you pack this bike in a larger suitcase, to see if it could be done without as much disassembly. Say a 30x21x11 or 30x20x12 polycarbinate, which would put you right at 62 linear inches.
The thing these folding bike manufacturers don't seem to understand is that many of us are not avid bikers, but we still want a low-cost folding bike that we can fold and put in a standard suitcase that we can buy on sale for $50, not some fancy $450 bike case. Don't care whether the wheels are 14, 16, 18, or 20 inches as long as I can get it in a suitcase easily.