Another way is to hook up with a shop or factory in your area. If you can get them to include your tubing in their order, it will be cheaper. I got a stick of 2X3 .188 about a month ago. When I called to check on a price, they gave me $167. I ordered the same thing thru a local shop and paid $93.
BTW...I use 7/8", .375" DOM for tie rods, panhard bars and drag links. The cut off pieces work well for things like brake pedal sleeves, coil over spacers, hair pin mounts, etc. because of the 1/2" I.D.
Ron