No special tool is needed for the ear clamps, pretty much any kind of pliers will work just fine. Hell a rock and a screwdriver could probably be used in a pinch.
My writeup for 3rd gen
Here (same for 2nd gen just different amount of lines required)
The tubing is part number MSC # 48701031 currently at
This link $2.19 per ft
Ear clamp part number is MSC #: 48547962 $.41 ea Currently found
here
