Ordered Iwata Revolution SAR need additional advice

In addition to what Chrisk-k advised, personally, I don't think the make-up of the hose will make much difference for you - the Smart Jet has a moisture trap attached. I believe the SmartJet Pro comes with a nice Iwata braided hose so no worries.

I have an Iwata HP-CS, an HP-B Plus and a SAR powered by a Smart Jet.

You need this --> www.chicagoairbrushsupply.com/quco1set.html  

You also need an AD9 male connector for your 2nd AB.  You can get both at Chicagoairbrush or Amazon.

The quick connector works flawlessly.  I use my SAR 80-90% of time.  It's an excellent AB for spraying base coats and not-so-complex camo patterns.  I hardly use a paint jar with it, though.  Badger or Paasche paint cups are compatible with the SAR and it's so easy to use and clean the SAR when you use a paint cup.