All the dorman stuff is here
http://www.summitracing.com/search/b...ew=ProductName
Summit is really good on shipping prices. They partnered with a shipping company last year that provide really good rates to Australia. Their website automatically calculates shipping to australia so just add what you want to the cart and then select Australia for a shipping price. I buy heaps of stuff from there now.
I looked at using those fittings but decided to go with -6AN as i prefer the look. I would think it should be ok, only thing is the barb is smoother on those fittings than a regular hose barb. Since the plastic molds to the shape it holds tight, but im not sure how it would go with thicker rubber fuel hose. The other thing is how strong the plastic is when tightening a clamp around.
Hopefully would be ok. I think you will know as soon as you try if it will work.