thx dugiebones, yep, maybe it makes sense to make the HH7 work for a living. I recall someone fitting racks to one a while back, but can't find the pic. I would rather to that than use seatpost rack, which I always find prone to swivel if loaded, no matter how one tightens, uses liquid torque etc.
Anyone point me in the direction of getting a rack that fits - does the standard Dahon tour rack fit I wonder?