i have 3/8x.035 stainless on my truck. i have all a/n fittings as well. i paid a little over $100 for the hardline and about $250 for fittings. the bender i use is from eastwood and bought it from them thru ebay for under $30. i use a Rigid brand flare tool i got from speedwaymotors.com that was like $130.
i bought the stainless from here:
http://www.aircraftspruce.com/catalog/mepages/stainlesstubing.php
i buy it in 8' sections since thats the longest that ups allows to be shipped by regular ground delivery.