Badger "Propel"+ Badger "can regulator"+Iwata HP-CR?

No, chap, what I mean is that it is most probable you"ll find adaptors on the other end as the air supply end tends to have a most common diameter. On the airbrush side, every maker has his own gauge and this is very difficult to manage

my badger hose does NOT fit my iwata airbrush by a long shot. just thought id mention...

I own a number of airbrushes and equipped them all with quick connect so to use only one kind of airhose; it is a transparent vinyl type of 5.6 mm diameter and it feeds perfectly all the airbrushes; on the other hand, if you are only going to use one airbrush, it seems that a great deal of adaptors exist so you could probably use you hose with your regulator, as far as I remember, the Iwata diameter on the compressor/can side and the regulator diameter are very common in the airbrush world, so it should not be difficult; the most quoted shops ( Dixie, Coast, Bear air) most probably stock them