roof rack plans,materials,

Thinking of undertakeing another metal working project with either steel or aluminum before the winter sets in-I'm thinking along the lines of something like a roof rack about 74'-inches or so long-Anyone here has any good designs or detailed diagram specifications they would like to share-PM if you chose with the specific info-TIA

Here's what my friend did

http://www.fivezerofive.com/main/index.php?itemid=309

..THX for all the input-
Over the weekend I have went out and bought another questionable piece of equipment and purchased a decent pipe bender from HF ,.. filled up the shielding gas tanks on the ole 200 amp Miller mig in expectation of starting yet a new XJ project -Anybody else with advice/suggestions/fotos or maybe a diagram or plans for an aluminum roof rack maybe basket-style and gutter mounted ?-TIA