Velo Vitality stock Honjo in the UK now, but they are quite pricey.
I had the VO guards for a while, they were good but I also cracked the rear one, fit was ok but not perfect due to the long campag style dropouts and the need to occasionally remove the wheel without unbolting the guards entirely.
Cool, and yeah I needed to sort my act out and put flaps on my Honjos for ages. Will look into brompton flaps.
Saw this mutilation of some honjo guards and want to cry...
Apparently he found them too difficult to fit so cut them into raceblades instead :|
Surly Pacer w/Honjo Race Blades 05