You ought to try it! The cinderblocks cost about 45 bucks, the expanded metal and wood were both free! I used play sand for foundation and to keep the heat in by dumping it in the blocks.
One warning- use a level and make sure the first row is as perfectly level as possible. If it isn't you will certainly notice later on. If I did this all over again, I would also probably use gravel rather than sand for the foundation.
I used that shovel to move fresh coals from the fire to the pit. Its a pain when it is so hot outside but its more than worth it. When the logs burn down, many impurities burn off in puffs of white smoke, leaving coals that only produce thin blue smoke (or no smoke at all.)
Oh and if you can't tell, we ate the que with baked beans, corn bread, and watermelon. What is in the metal dish was my serving.