Go to the Aquamist website then click supplier listing. Click USA or Non-USA. Look on the right side to see the resellers...I copied the links to each below to save you the time.
USA
http://www.aquamist.co.uk/sl/plist/frm-4-USD.html
NON-USA
http://www.aquamist.co.uk/sl/plist/frm-4.html
Contact the reseller directly and explain what you are wanting to do. They will be able to get you the parts you need.
I have not heard a bad thing about any of them so you should be OK picking one on your own.
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Also, stick with the 4mm or 6mm line that is intended for the Aquamist jets, US or SAE do fit but it's a pain to get them on properly.
If you are using a surflow pump based kit you need to get 2 x 3.8 to 1/8 BSP adapters so you can switch to the Aquamist fittings.
Attached image should help.....I got it from another thread on this forum but can't remember the specific thread
