shipping is gonna kill you if you don't get them locally. but you can save some money if you buy just the bases and brackets and supply your own pipe. you can pick up pipe at Home Depot in pre-cut lengths or have them cut to your length. i used pipe intended for Natural Gas, as it is already black.
you don't end up with the covers, but M&K charges an arm and a leg for just a piece of pipe and a plastic cover.